Free science games for kids online, fun interactive learning physics activities, chemistry, biology games for PC, Mac, iPad, tablets with no download: Science games for kids in grade 5, 6, 7, 8, 9th, 10th, 11th, 12th graders to play, for middle/ high school students, to use as a teaching tool in the classroom.
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Free Science Games for Kids - Interactive Learning

Rating: 7.4/10 - 67156 votes

Learn4Good.com presents free online science games for children, teens & Big Kids to play and test their thinking skills with. Understand and discover science through fun interactive educational activities, cool physics-based games, chemistry & biology-based games, tricky brain-teaser thinking puzzles, awesome engineering/ construction problem-solving games and more on your computer in the classroom or at home. From easy-to-play fun games for elementary school children, to more challenging and difficult exercises for middle school/ junior & high school students.

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Unleash your inner Einstein in an awesome interactive physics-based puzzle game that combines problem-solving skills with wacky scientific experiments! The Successful Experiment is an addicting online brain teaser game where you must use a clever combination of the effects of gravity, eccentric work methods & actions, and a range of scientific tools in order to guide, divert and deflect, an Eight Ball toward a Green Flag so that it makes contact with the flag in each level. This task is made all the more difficult by an array of different environments, obstacles, and challenging physical states of play (some levels are under water, some require floating etc). Using three different types of balls as ‘tools of manipulation’, you must carefully alter the game zone, and push the Eight Ball toward the Flag via bridges, cannons, chutes, water hazards, and more!

This highly innovative and challenging physics problem solving & skill-based activity may prove to be a genuine head-scratcher for even the savviest of puzzle game veterans! Some appreciation for the laws of physics and the effect of gravity on objects is definitely important as you try to logically and methodically influence the game environment in order to create a path for the Eight Ball to come in contact with the Green Flag. Quick reactions are also essential as you have to be smart with your masterful mouse movement in order to get to grips with the raucous experimental chaos that occurs once you set your strategy in motion! Just like most scientific experiments, trial and error plays a big part – so be prepared to be patient in your efforts. Enjoy the great experiment!

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Love a really difficult physics-based puzzle activity? Ramps is a highly-stimulating, interactive physics game (for older middle school age kids, high school students, and grown-ups) that will thoroughly test your analytical thinking skills and problem solving tenacity levels. It is based on the relationship between potential energy (stored energy - ready to go) and kinetic energy (the energy of motion), and how your understanding of these two energies can greatly enhance your chances of success. In simple terms, you have to use a set of rotatable ramps to guide a dropping sphere into an awkwardly-placed bucket in each level. You play the role of ‘Ramp Builder’, and have to strategically position your limited number of ramps throughout the game screen so that they create a route or bridge structure for the descending blue sphere to travel along. Points are earned based on number of spheres used in each level, the time taken to solve the level, and the difficulty of the level.

This challenging and innovative online brain teaser activity requires total concentration, great patience, and the ability to predict the bounce and velocity of a falling sphere. You also need to call upon your creative engineering side as you carefully construct a platform that guides your sphere in the desired direction. Close observation, and trial and error are essential keys to success, so ensure that you keep trying different ramp combinations, and the solution should "hopefully" reveal itself to you with time! Happy channel building!

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Sleepy Heads is a fun yet hard physics-based puzzle game for older kids and teens, and certainly not for real-life sleepyheads, where you must strategically add wooden objects to the game environment, and hope that your additions and placements cause a chain reaction that upends some happily snoozing characters! You must jolt "block-heads" from their sleepy state by interacting with the game screen and adding the wooden blocks to tip the sleepers off of their perch. Utilize the effect of gravity to ensure your cleverly placed pieces help to directly knock the dozing gentlemen off of their ledges, or push other objects chaotically around the play area so that the sleepers cannot get any decent rest!

Skills required: This highly interactive, multi-level brain teaser requires a good combination of analytical and logical thinking skills, strategic planning, anticipation skills, accurate mouse clicking, and determination. General knowledge of the pulling effects of the force of gravity is important as you try to predict where the ledges and wooden beams might move to when you make your additions. Trial and error is really key; you must learn from your mistakes, and make improving adjustments accordingly.

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Perfect Balance is an online physics-based game where you have to place objects carefully without letting anything fall out of Playing Area. It is based on the laws of gravity – meaning that things can fall if you’re not careful. Building and dropping stuff has never been such fun! Have a go at this challenging brain-teaser activity - Just don’t lose the balance of the structures you create!

The goal of the game is to place all the objects in the Playing Area and to not let them fall off. This is how you pass each trial (level). There are 40 trials in total. You can either balance the objects perfectly and then pat yourself on the back - or watch in horror as your work-of-art sways and very slowly drops out of the Playing Area. Take a deep breath! Things are about to get wonderfully wobbly!

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Rolling Tires 3 is an innovative, interactive physics-based puzzle game, and a sequel in the awesomely challenging Rolling Tires series of ‘removing blocks’ brain teasers. Set in a vehicle construction / scrap yard, you have to figure out a logical solution in each level so that you successfully move and channel an errant wheel toward its parent truck. The trick is to strategically eliminate wooden blocks in such a way so that you create a pathway, engineer a bridge, or even physically knock the wheel toward its desired destination.

This highly inventive mouse-clicking science-based game is a very stimulating test for fans of fun online problem solving puzzles with a twist, or anyone who likes a good opportunity to practice his/her creative engineering skills. Good strategy is extremely important here as you often have to think two or three moves (block removals) ahead in order to create an effective pathway for the wheel to reach the truck. Trial and error also plays a big part in the Rolling Tires game series, so be prepared to stick it out (every great scientist, engineer or entrepreneur is blessed with endless determination to solve a problem and succeed!). Let’s see if you’ve got the problem solving skills to complete 20 increasingly difficult levels! If you get completely stuck, ask a family member, friend or your classroom buddies to work with you as a problem solving team. Great teamwork leads to great solutions!

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Liquid 2 is one of the most unique and innovative puzzle & skill games we’ve had the pleasure to play on Learn4Good! It’s a tricky and challenging physics-based rotating maze game for kids / teens where you have to guide as many drops of white liquid as you can to the designated 'End Zone' in each level. Set in a cool, psychedelic art-style landscape, you have to manipulate and spin the playing field around to make sure the liquid travels along your desired route through each maze. In later levels, you must unlock doors, avoid obstacles, and maneuver the white liquid around shapes that are blocking your direct path.

If you’re eagerly looking for an inventive and original brain teaser puzzle, then Liquid 2 could be just that game! It requires very good hand-eye coordination, quick reactions and expert strategy planning as you have to plot a safe route through the increasingly tricky rotating maze levels. This is a cool activity for gamers who specifically enjoy physics-based puzzles, or players who enjoy testing themselves against a simple concept with an awesome new twist! Some understanding of the rules of physics and gravity can be an advantage here as the Liquid reacts to gravity within each maze as would water. Do you have the patience, creative thinking and deft handling skills required to direct a sufficient volume of this precious Liquid to the End Zone? Ok “Liquidator", it’s time to make a splash! Good luck!

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Defend our planet, and figure out the best way to blast hard-to-reach alien invaders in this aiming and accuracy-based skill and puzzle game! Playable on iOS, Android, notebook, and desktop PC, Cowboy Vs Martians is an interactive, physics-based action game and brain teaser that combines fun problem-solving with accurate shooting skills. Using a ‘Wild West’ revolver, you have a limited number of bullets with which to eliminate all of the slimy Martians – who often have the protection of well-placed obstacles and other deterrents. Can you show True Grit and come out on top in all (increasingly-difficult) 40 levels?

This HTML5, physics-based shooting game should work on iOS and Android devices, as well as most web browsers for PC / Mac, laptop, notebook. An understanding of basic aiming, angles and bullet trajectory is important here as many of the levels require logic, analytical thinking and problem-solving skills in order to ensure the aliens are within range. Fast reactions and tactful mouse clicking / finger tapping skills also play a big part in your success or failure to save planet earth from these terrible invaders! In later levels, trial and error becomes more important as there are many obstacles to be removed – and these tasks often need to follow a specific sequence.

Control Tip: For mobile / tablet users, aim by tapping and swiping the target marker anywhere on the game screen, and then shoot by tapping on the red gun button in the bottom left corner of the play area. 

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Are you ready for a Panda Party? Fancy Pandas is a challenging physics-based puzzle game for kids & teens where you have to unite pandas together by any means possible! In each level, you must remove objects, create pathways and strategically place blocks in order to deflect the cute little pandas toward each other. These adorable little guys are endangered, so the best way to make them happy is to keep them together!

This fun problem solving activity is based on the law of gravity, so you have to plan your move well before you act. Beware of troublesome red bad guys that try to block the pandas’ path, and try to complete each level as quick as you can to score extra points. Strategic planning and timing is the key to this brain-teaser game; Make sure each level is set up exactly the way you want before setting the pandas on their way.

It will also test and exercise your creative / engineering skills, as you have to carefully build bridges and pathways to ensure the pandas touch off each other. You’ll also need to have quick reactions, as on some levels you must quickly change the path of objects to make sure they send the pandas toward each other. There is a lot of trial and error required in this difficult online puzzle, so you’ll have to be patient if you want to find the right solution. Ok, it’s time to connect those pandas. Good luck!

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Are you ready to take on a balancing puzzle where a simple concept is transformed into an extremely tricky challenge? Mass Attack is a clever online weighing-scales puzzle game where you have to balance out a set of scales by carefully growing the weights yourself. In each level, one side of the scales already has weights (black circular boulders) on it. You have to balance the scales by creating the correct size weight, and placing it on the opposite side. The tricky part is carefully judging how big or small the balancing weights need to be. The cool way that you generate the weights makes this fun math puzzle extremely addicting.

There are no fancy tricks or shortcuts here - just good, old fashioned judgment and skill. Your observation abilities will also be tested, as you get a brief glimpse of how heavy the weights need to be to balance the scales. In some cases, you have to add these numbers quickly in your head, which will exercise your math abilities. This brain-teaser is good for gamers who enjoy physics-based puzzles, or anyone who enjoys finding the solution to a simple concept with a cool new twist. Have you got what it takes, or do you feel the ‘weight’ of the world on your shoulders? It’s time to show us that you’re the only Balancing Master around!

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Balance Zone is a simple, physics-based game and online problem solving activity for kids & teens where you have to test and use your knowledge of balance and gravity to succeed.  Your mission is to make two Scales balance in the special ‘Balance Zone’ by strategically placing differently shaped blocks on them.  Each of the ten levels can only be completed by keeping the Scales balanced in the Zone (the darker grey background) for 8 seconds. 

This game is designed to test any budding Physics Whizz, and requires a basic understanding of science – gravity, mass, geometry and how balance-beams work.  This brain-teaser is based on the laws of gravity – meaning that the blocks can easily fall off the Scales if you’re not careful.  Have a go – see if you can handle the delicate demands of gravity and show off your engineering talents!
 
How to Play: Using your computer mouse, click and drag the colorful blocks from the right hand side of the game screen to the two Scales in the center.  You can stack blocks either on top of each other, or side by side.  Carefully position the blocks so that the Scales are balanced in the Balance Zone (when this happens, the clock starts ticking).  If the Scales stay in the Zone until the clock runs out, you progress to the next level. You don't have to keep the scales perfectly balanced - just as long as they remain in the Zone Area for the time it takes the clock to go around. Happy balancing!

Tips: You don’t have to put every block on the platforms to make them balanced.   You can leave some of them off to the side. Try different combinations of blocks on each of the scales until you get it right. Also, add up the number of squares on each block to compare the weight of each, and then try to get an equal amount of squares on each scale for better balance.

If this Flash-based game no longer works on IE11 on your PC / MAC, try playing on Chrome or Firefox browser.

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Are you a ‘well-balanced’ person with a love of stimulating and challenging games? Ball Balance is a straight-forward, physics-based skill game for kids where you have to score points by successfully balancing a series of weighted balls on a specially-designed, ball-carrying scale. The scale has 5 different dropping areas to the left and right of the fulcrum (the gravitational center of the structure), and you have to make sure it doesn’t tip over; Do this by loading each side with an equal weight of balls. As well as keeping the scale in a carefully-balanced equilibrium, you must also try to score points by positioning three same-colored balls in a row, horizontally or vertically.

This unusual ball balancing activity is a good choice for exercising your multi-tasking skills. An understanding of the law of gravity as well as good concentration are extremely important here. One slight mistake, and the whole structure could topple over! Quick reactions also come into play, with different colored and weighted balls coming thick and fast as you progress further into the game. Your status as a Skill Game Superstar is hanging in the balance - it’s time to show who is a true master of balance!

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Lever Physics is a challenging, math, physics and equilibrium-based game for upper elementary school / middle school students, high school teens and grownups where you must place and balance weights (fun items and characters) on a ‘seesaw-style’ beam connected to the ground by a pivot (fulcrum). Playing against the clock, you must place any available weights onto the lever (beam), and try to keep it perfectly balanced in the middle.

Some quick physics revision: A lever is a simple mechanical device which consists of a beam or stick or rod, and helps to lift weights with less effort. To be effective (as a lever), it must have a support to pivot on. This pivot is called a fulcrum. Levers can then be used to exert a large force over a small distance at one end of a structure by exerting only a small force over a greater distance at the other end of the same structure (beam). (Physics teachers - Brief correction welcome here if needed..!)

The Law of Equilibrium: A lever is in equilibrium when "the load" and "the effort" balance each other. The effort (weight) multiplied by its distance from the fulcrum = the load (weight) multiplied by its distance from the fulcrum. This law of equilibrium is true for all classes of levers.

For example, 2 pounds of effort exerted 4 feet from the fulcrum will balance 8 pounds located 1 foot on the other side of fulcrum. This effort times (multiplied by) distance about the fulcrum is the "Torque" (rotational force).

Back to Lever Physics Flash game!: Don't be fooled by the fun and playful imagery in this load balancing brain-teaser! It is a tricky, analytical thinking puzzle and logic problem solving challenge that requires good observation skills and hard thinking combined with mathematical and engineering solutions.

This interactive, point-and-click activity allows some trial and error (by quickly placing, removing and re-positioning weights) but you definitely cannot delay your decisions for long as the clock is ticking fast! Ok Balancing Master, can you ‘lever’ yourself to the top of the class?

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Rolling Football is a very challenging, soccer-themed, physics-based puzzle and ‘environment altering’ brain-teaser game where you must add / move blocks and other items in order to ensure a soccer ball rolls into the open goal. Methodically and tactfully add the building block objects to the level, and then release the ball, and wait for gravity to complete the job! Scoring a goal has never been so intricate and complex!

Reasons to play this hard, interactive, science-based puzzle: Sternly test and exercise your analytical thinking and prediction skills, creative engineering, problem-solving determination, timing and stamina to figure out a solution in each of the 18 increasingly-difficult levels. This challenging soccer ball-based, environment altering game could be used as a fun gravity / momentum science lesson reinforcement aid in the school classroom or at home.

Strategy to win: Good old trial and error combined with your determination plays a big part in your success here. You must try to learn from your mistakes, and make alterations in your next attempt. Visualize (predict) what you think will happen, use good judgement in placing the blocks, and try to use gravity and the building block tools in each level. Remember that it does not matter how the ball gets in the goal but that timing is everything!

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Combine your artistic drawing skills with creative engineering know-how in a fun physics-based puzzle in order to guide a bouncy red ball into a U-shaped target basket! Playable on mobile phone, tablet, notebook, laptop, or desktop PC, Physics Drop is an interesting and very enjoyable, multi-level, problem-solving, construction-based puzzle game (for elementary age kids through high school students & adults) where you must alter the game environment by drawing bridges and pathways using magic blue ink. Utilize your imagination, freehand-drawn creations and the effects of gravity to push and channel a small red ball into the light-blue basket in the 50 increasingly-difficult levels! Some levels require the drawing of a simple one-line bridge or pathway, while other levels need much more complex drawings in order to propel or deflect the ball towards the U-shaped goal.

This HTML5-based, interactive, multi-level problem-solving brain teaser and construction puzzle game should work on Android devices as well as most web browsers for PC / Mac. To play with full screen, you may have to turn your device horizontally. Skills required include high levels of concentration, good hand-eye coordination, simple drawing ability, logic-based problem solving skills, analytical thinking and creative engineering skills, and a general appreciation of the basic laws of physics and gravity. Good patience is rewarded here, while dogged determination and a willingness for trial and error are essential traits of a real problem solver. This is especially true in later levels when you must create large webs of bridge and pathway drawings.

Tip: Don't waste too much time trying to make a busted drawing work out. When needed, simply click or tap on the circular arrow at the top of the play area to start over from scratch. A fresh mind can do great things on a clean slate!

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Create chain reactions in this difficult physics-based brain teaser puzzle. Screw The Nut 3 is a wonderful example of a visual and interactive skill-based game where you have to carefully study the environment in each level, and then find an innovative solution by uniting two pieces of normal, everyday hardware (a hexagonal nut and a bolt). You must use your creative engineering skills to remove blocks, manipulate objects, and generally alter the game environment to your advantage (hopefully!).

Unlike previous versions of Screw The Nut, this Flash game takes place underwater – which means that you can also enlist the support of an array of fun-loving sea creatures to help you toward your goal of joining the nut and bolt together. Screw The Nut 3 requires concentration, logical thinking, determined problem solving skills, the ability to predict the movement and reactions of various items, and the willingness to learn by trial and error. The underwater environment adds a challenging gravity-based element to the mix as you take the floating nature of various objects into account. Right then – It’s time to crack this particular nut for good!

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Blue Blox 2 is a challenging and addicting physics-based puzzle game for older kids & teens where you have to unite two blue blocks together. Help join Bruce the Blue Block (a cute little cube with hilarious facial expressions) up with his same-colored friends by removing objects, creating pathways and strategically positioning other blocks in order to deflect Bruce where he needs to go. You play the role of Block Remover – your only action is to remove blocks already on the screen in each level. Each time you remove a block, the other blocks around it will react to gravity by falling to the bottom, or moving downward and hitting off one another. The order, speed and timing that you remove the blocks is the key to success.

This colorful brain-teaser will really test and exercise your creative engineering skills, as you have to carefully build bridges and pathways to ensure the blue blocks touch off each other. You have to plan out your strategy before you act; Try to guess which way the blocks will fall before making your move. You’ll also need to have quick reactions, as on some levels you must quickly change the path of objects to make sure they send the blue blocks toward each other. Are you ready to stop Bruce feeling blue and re-unite him with the other blue blocks? Good, it’s time show us what you can do, Oh Great Engineer.

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The physics-based puzzle genre features some of the most innovative and challenging games on the Learn4Good site. Rolling Tires 2 fits right into this inventive category – It’s a clever, strategy-based ‘block removal’ game for older kids where you have to carefully eliminate wooden blocks from a cluttered game screen in order to create a channel that will move a new "tire" (a full wheel here) to a waiting truck. While your only action is to remove blocks, you have to think hard about the specific order in which to remove them, how falling items might react to and change the environment around them, and how best to propel the wheel toward the truck.

This original, interactive and highly-stimulating brain teaser activity should be a good fit for avid science game fans, or anyone who enjoys a tricky problem solving challenge that really puts your mind to the test. Good analytical skills and a strategic brain are vitally important attributes required here as you have to think 2 or 3 moves (clicks) ahead in order to ensure your wheel has a possible pathway to reach the truck. Be prepared for plenty of trial and error too – some higher levels require you to really break things down, step-by-step. OK Puzzle Master, it’s time to show off some of that creative engineering talent! Can you find a solution to each puzzle? If you need help, ask a family member, friend or your classroom buddies to work with you as a problem solving team. Good teamwork makes a Big Difference in solving difficult problems. Enjoy!

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Calling all young science game aficionados! Would you be interested in a challenging little physics-based puzzle? If so, Moony Boom is a highly interactive online science-based game for kids where you have to strategically add objects, create pathways, and build bridges to divert a falling moon toward an exit point at the bottom in each level. Morning time is fast approaching, and the friendly moon needs your expert help to assist it in leaving its night-time position perched high in the sky. You are the ‘game changer’, and must carefully position the objects (tools) provided on each level (for example, wooden beams, springs, wheels, or cones..) in strategic areas throughout the game environment in order to find a solution (to ensure that the moon falls and reaches its desired destination).

This quirky and innovative brain teaser should be a good fit with fans of online problem solving activities with a fun new twist, and with anyone who enjoys bringing their creative engineering skills to the virtual table! Each level presents a different challenge where you have to tactically and logically manipulate the game area using the various building and construction items (your tools). Trial and error plays a big part in this tricky online head-scratcher – because once you have chosen the best placement for each tool, there’s no going back (it cannot be repositioned)! A basic understanding of physics and gravity is very useful as you try to gauge in which direction the cute personified moon is going to travel. Let’s see what you can ‘add’ to this challenging puzzle! Happy problem solving!

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The Other Half 2 is a challenging, platform adventure game and multilevel physics-based, brainteaser puzzle for older kids, teens and grownups where you must guide a small stick figure character and his identical ‘reflection’ through a series of tricky ledge and obstacle-filled levels. Featuring 24 progressively-difficult challenges that require plenty of thought and smart strategy, you must carefully leap from platform to platform, discover invisible objects, use teleport devices to your advantage, combine the skills of the mirror-image characters, and more!

Strategy / skills required: Utilize fast reactions, good observation and memory skills, a cool head, sharp analytical thinking and creative engineering to find a solution to each tricky puzzle level. Some levels feature invisible ledges that you can only view for a split second, so your perception and picture memory skills really need to be accurate.

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Problem: Polar bears trapped in ice cubes. Solution: Interact with the game environment, use falling objects and the effects of gravity to find a way to push the cute bears into the water, freeing them from their icy constraint!

Ice Cube Bear XP is a very challenging physics-based puzzle game for older kids, teens, and grown ups where you must figure out a solution that pushes, nudges, or prods a trapped polar bear into the water. Use smart logic and creative problem-solving skills to interact with the game screen, remove obstacles, create bridges, initiate momentum and more on your noble quest to free all polar bears in 20 progressively-difficult levels.

This fun and stimulating brain teaser activity combines good strategic planning, fast reactions, tactful mouse-clicking, expert timing, and great patience and determination. You have to take many factors into account in each level – when to click, which objects to remove, and in what order to remove them! Ok Puzzle Master, we can’t ‘bare’ the suspense anymore! Let’s get problem solving!

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