Fun free science games online/ interactive brain games, physics puzzles for kids- 2nd, 3rd, 4th graders, 5th, 6th, 7th, 8th, 9th, 10th, 11th, 12th graders. Good science Flash games with no download, HTML5 games, 3D Unity games for PC, Mac desktop, laptop, notebook, tablet. New top-rated physics games, puzzles..
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Fun Science Games - Play Online for Free

Rating: 7.4/10 - 100206 votes

Play fun, free browser-based science games for children, teens, school students & families online on the Learn4Good Games site. Challenge yourself and exercise your brain with cool science-based games, interactive physics learning activities, interesting engineering problem-solving games, fun biology & chemistry-based games, and more to play at home or in the classroom as a teaching & reinforcement lesson.

Find easy-to-play games for elementary school age children to more difficult analytical thinking skills exercises for middle school & high school students. Enjoy the brain work!

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Catch the Candy Mech is a challenging, fun, interactive physics-based, visual puzzle game where you must skillfully use a Spiderman-style extendable rope tool to unite a small purple character with a tasty piece of candy in each level of a mechanical environment. Your determined purple hero cannot move of his own accord, but can move around the game screen by smartly using the retractable rope mechanism combined with some helpful objects in each level.

As Chief Puzzle Buster, you must choose when, where, and how to launch the rope-swinging, cuddly character into action, and how to maintain his momentum in the desired direction.

This very quirky, logic and skill-based arcade game should prove an interesting activity for fans of highly interactive problem-solving games with a twist, or anyone with a straight-forward fondness for good online puzzles and brain teasers. Good observation, analytical thinking skills, strategy, fast reactions, accurate mouse-clicking skills, and great determination are all required and exercised here. The timing of your swinging movements (mouse control) is really important, and the difference between success and failure. So, are you ready to swing into action? It's time to catch some candy!

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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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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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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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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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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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Paper Floods is a very challenging and quirky physics-based puzzle game for elementary through high school age kids where you have to save a copybook-drawn "Dude" character from a rapidly surging flood in each level. To do this, you must place lifebuoys (life preservers), blocks or rocks in strategic positions so that when the flood comes in, these objects assist your buoyant character in reaching to safety above the new water level close to the top of the game screen.

This tricky, problem-solving brainteaser game causes you to also think outside of the box, and should prove a good exercise for fans of physics and gravity-based puzzles, or anyone who enjoys applying creative engineering and analytical thinking skills to a fun online activity. It could also be used as a fun physics or interactive buoyancy lesson reinforcement activity in the school classroom.

Your strategic decision-making skills really are "central to your success" here as you take potential energy and kinetic energy into account when placing your available objects. There is no time limit on your initial thinking and placement phase, so you have every opportunity to visually predict what is likely to happen, and to carefully plot your new "Dude" buddy's escape from each perilous situation. If your survival items aren’t sufficiently well-placed, it is unfortunately big trouble for Dude! We hope you're ready to use all of your logic skills and determination to save the day!

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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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Are you ready to get pumped up for a mind-boggling, brain-teaser sequel that could have you leaping around the room with glee, or holding your head in frustration – depending on your level of success! Inflate Us 2: Funny Land is an innovative and highly interactive physics-based puzzle game for older kids and teens where you must use sharp observation skills, strategy, logic and good timing to collect the magical potion flask in each level, while eliminating any red-colored blocks and keeping blue and green blocks within the game zone.

In your important role as Chief Inflation Engineer, you must cleverly use the tools at your disposal, and strategically click on the various character shapes in order to change (inflate and deflate) their form, allow them to roll around, and start a physics-based chain reaction that results in the elusive flask of blue potion being collected. However, this is much easier said than done with the added hindrance of various obstacles, steep ravines, challenging terrain, tricky layouts, and other pesky items which attempt to halt you in your tracks!

This enjoyable online problem solving game should prove to be a hit with middle and high school age children who really enjoy an interactive activity that gets their brains working hard! Even highly experienced puzzle busing gamers could well find themselves tearing their hair out as they try to engineer a workable solution in later levels. A good appreciation of gravity is also needed as the game follows the laws of physics and gravity. Have you got the sheer determination (and patience) to battle your way through all 20 levels? It's time to knuckle down and pump it up!

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Play a tough, interactive puzzle game requiring good judgement and great determination and stamina: Destroy The Wall 3 is a difficult physics and skill-based puzzler for older kids & teens where you must fling a ball across a confined play area, and attempt to eliminate a certain number of wooden blocks from each level. Featuring complex obstacle formations, teleport fields, awkwardly-positioned blocks, and a ‘one shot’ rule among other challenges, this is definitely a stern test for virtual problem-solving specialists!

Reasons to play this tricky, brainteaser-style arcade game: Combine accurate mouse control with good visual judgement and prediction skills as you attempt to dislodge the wall of wooden blocks, and eliminate them from the game screen. Test and exercise your willingness to learn from your mistakes (through lots of trial and error). Some levels set the bar quite high in terms of difficultly, so you need to be 100% ‘in the zone’ if you want to complete this game. There is a solution to each level – It's up to you to find it!

Strategy to win: With 20 progressively-difficult levels to conquer, you must exhibit high levels of concentration, good hand-eye coordination skills, deft mouse control, and sharp analytical thinking skills as you try to figure out how best to use the height, momentum and force of the ball to your advantage. Great patience and determination are also very important traits required to keep plugging away and testing out different possible ways to solve each level.

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Master Block Balancers urgently required: 18 increasingly difficult block-stacking levels available for those who love physics-based, block building / balancing games. Old Constructor is a stimulating Tetris-style construction and balancing game of pencil drawing graphics style, and similar in theme to the Perfect Balance game series. Set against a nostalgic black and white background, you have to create a solid, stable tower structure using a set of differently-shaped blocks in each level. The order of the blocks or the appearance of your structure is entirely up to you. The key thing to remember is that all shapes in each level must be added – no matter what the order or sequence.

This challenging puzzle game requires a basic understanding of the laws of gravity, logical thinking, creative engineering skills (especially as you gauge which shapes would better suit the foundation layers of the structure, and which would be more appropriate for the higher layers and top of your construction). Patience and determination are essential virtues here. Happy tower building!

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Play a funny and addicting yet very challenging timing-based, problem-solving puzzler where you must help a rolling zombie character connect with a delicious piece of cheese with fast and tactful mouse clicking and good strategy: Zombies Love Cheese is a point-and-click, physics-based puzzle game where you play the role of a mad and determined scientist responsible for the bringing together of the roll-able zombie with its desired piece of cheese in 24 increasingly-difficult levels. Interact with and alter the confined mechanical levels by flipping switches, dropping blocks, raising ledges, and more!

Skills required: This tricky, timing-based, mouse-controlled brain teaser game requires good observation skills, sharp focus and concentration, analytical thinking skills, strategy, swift reactions, problem-solving determination, and the ability to learn from your initial experiments (trial and error). Good anticipation skills are key – you must be able to predict where and when to make your moves and alterations. Some actions must be done in a specific sequence in order to ensure your zombie reaches the piece of cheese.

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Send a block home with smart block removals, shrewd strategic planning, and tactful mouse-clicking! Go Home Block 3 is a physics-based, problem-solving puzzle game for kids and teens where you must interact with the play area using your mouse, and cleverly remove obstacles in order to guide a hairy blue block to a wooden ‘Home / Exit Door’. Unfortunately, your block character cannot move of its own accord, and therefore needs your interaction skills to make its journey homeward. Featuring 20 increasingly-difficult levels, you must overcome a range of platform and ledge-based obstacles and hindrances in this ‘escape-the-level’ brain teaser challenge.

Skills required: Fast reaction and mouse-clicking skills are needed, with an emphasis on timing and pinpoint accuracy. Analytical thinking skills must be combined with focus, concentration, stamina, and determination. Some later levels require deep thought and strategy.

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You control the button; you control the outcome! Blockoomz 2015 is a highly interactive, challenging and explosive physics and reactions-based puzzle game. Here, you must utilize smart strategy, excellent timing and smooth mouse control to blast ‘bad guy’ pink, black and grey bombs off of the game screen while simultaneously protecting the ‘good guy’ yellow bombs from harm. As Chief Bomb Expert, you must carefully decide when and where to execute each explosion.

This highly-stimulating, point-and-click arcade game requires very good analytical problem solving and creative engineering skills as you attempt to generate sufficient momentum and interaction to knock some bombs off and out of the play area. Levels are filled with platform-style hindrances as well as bombs positioned in awkward places, so a certain amount of learning through good-old trial and error is essential. A basic understanding of the effects of physics on a "suddenly disorderly environment" is also important – For example, bombs are certain to be flying through the air!

Now, let’s see how well you remain cool, calm and collected under intense pressure in this tricky, incendiary challenge!

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Interact with the game environment in order to guide a slice of delicious salami into the paws of a hungry cat in this fun, physics-based puzzle game! Cat Around The World: Alpine Lakes is a multi-level brain teaser where you must remove obstacles and alter the play area in order to roll a piece of salami toward a motionless cat! Playable on mobile phone, tablet, notebook, laptop and desktop PC, this is a challenge where feeding a kitty cat is no certainly mean feat!

Skills required: This stimulating gravity-based puzzler requires sharp analytical thinking skills, hand-eye coordination, fast reactions, observation skills, and dogged determination. Smart decision making and problem-solving know how are key as you attempt to figure out the correct obstacle-removing sequence in each level. Trial and error is also important – You must learn from failed attempts, and adjust your strategy accordingly!

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Play a balance and weight-based, problem-solving, visual puzzle game with a simple concept! Out of Balance is a stimulating and thought-provoking, multi-level brain teaser for younger kids through elementary school students where your task is to simply identify the heaviest object in each level. Random items are placed on one or more see-saws (teeter-totters), and you must work out which object is the heaviest using careful consideration, analytical thinking, and problem solving methods.

Skills / strategy required: In this straight-forward, physics-based, visual puzzler of 20 levels, good focus and concentration skills are combined with deduction skills and analytical thinking to find the correct answer. A good strategy is to take your time to carefully study the relationship on each see saw individually, and work to come up with a logical solution regarding which object is the heaviest.

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