Free science games online: Best science games, physics games to play now- for PC, Mac desktop, laptop, notebook, tablet with no download: Top-rated physics games, puzzles ever on this site for kids in grade 5, 6, 7, 8, 9th, 10th, 11th, 12th graders. Good new Flash games, 3D Unity games, HTML5 for iPad..
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Best-rated Science Games on this Site

Free browser-based science games online for children, teens & families on the Learn4Good Games site. Play interactive science-based games, cool physics learning activities, engineering problem-solving games, fun chemistry & biology games and more to play online at home or as a teaching tool in the classroom.

From easy-to-play games for elementary school children to more challenging & difficult exercises for middle school & high school students. 

Best-Rated = Science games with the highest rating out of 10; it does not mean the most played games or games with the most votes.

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Best-Rated 1 2

Pandemic 2 - In this online strategy game you play the role of an evil scientist trying to create a biological weapon. You are the one trying to create a virus, a parasite or bacteria with specific characteristics which in turn infects all inhabitants on Earth. You win the game if you achieve this. This is not an easy task as governments and hospitals are, at the same time, working hard to prevent the spread of disease and find a cure. 

It’s your job to infect everyone in the world with your disease. You start with a disease that's very low on the radar which looks like a locally-spread flu. There are very few symptoms to indicate what sort of contraction this is, and most people do not recognize what trouble is coming to them. While keeping the long-term effects of the infection low enough, you can increase the spread of the infection without being taken seriously by governments. If you manage to infect 80% of the population so it has an annoying but inconsequential infection, you can put your evil plan to work – to increase the deadliness of the infection up to 11 times and wipe out life on the planet. This sure is one crazy scientist that you are role playing.

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In Crush The Castle 2 (a medieval & physics-based game for teens), the Redvonian King has sent you, his trusty Siege Master, and Halgrim his finest mason, to bring together all of the greatest minds in the land to destroy Blutias’s Empire. Go forth, crush all of the castles of Blutias using the most powerful Trebuchet and ammunition. Start to play by clicking on New Game or People’s Empire (crush the castles built by other players). You can also build a castle on your own, by clicking on Castle Builder. The amount of Inhabitants eliminated, and your armor are shown at the bottom of the game screen, whereas your shots taken can be seen at the top of the game screen.

The further you get, the more new ammunition is offered to you by Halgrim and other clever people, such as Cormyn, the devlish engineer or Mauryl the Great, a hermit wizard. To choose which weapon to use, simply click on of the arrows located by the ammunition icon, and choose your weapon. The number of shots used is unlimited but if you crush a castle in one shot, you earn a Gold medal. Good luck!

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Are you suited to becoming a Demolition Expert? Dynamite Blast 2 is a challenging destruction-based puzzle game where you must blow things up by carefully placing sticks of dynamite onto various structures (bridges, towers, buildings) in order to bring them crashing to the ground, below a specified height. Throughout the 35 increasingly-difficult levels, your job is to ensure that your explosives are positioned in such a way as to create MAXIMUM carnage to get you below the target "success" line.

This fun and stimulating skill-based game requires more subtlety than simply pressing the detonator button and hoping for the best. Here, you must utilize smart strategy to decide on weak points in each structure. A basic understanding of physics and the effects of gravity is helpful as you try to ensure that the falling structures are kept as low as possible. Trial and error also comes into play as you attempt to learn from your mistakes! Let’s get to the detonating action!

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Strikey's Revenge is a challenging, "street golf"-themed, physics-based puzzle game where you must shoot a golf ball into a waste basket in a series of 18 progressively-difficult, obstacle-filled levels (which play like a wacky game of mini golf combined with the intricate science of power, angle, and trajectory!). You play the role of Strikey, a fiery golfing prodigy, and must use his incredible skills and aiming devices to figure out the best way to engineer a solution that deflects the ball into the urban waste basket (bin) in each tricky level.

Skills required in this multilevel golf, aiming and accuracy game: Creative engineering and analytical thinking skills are very important in this environment – There are multiple ways to get the ball into the basket depending on the angle and power used in your shots. Trial and error is also part of a smart strategy as you test out how the ball reacts against the various obstacles and unusual objects in each level. Good observation skills, a steady hand, a cool head under pressure, and expert mouse control all play a part in your chances of success.

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Crush The Castle Game is a medieval physics-based game for teens. The King has ordered you to crush all the castles of the region in order for his kingdom to survive. Bombard and crush castle after castle and all the inhabitants (unfortunately, such were the times) with the most powerful Trebuchet and ammunition. Start playing with an already built castle or build a new castle on your own. Your number of shots remaining are shown at the top of the game screen.

Your level (or the number of the castle you are attacking), inhabitants eliminated and your armor are shown at the bottom of the game screen. New ammunition is introduced on further levels. To choose which weapon to use, simply click on an item in the table at the bottom of the game screen. After the last stone is thrown, a timer appears. Therefore, do not spend too much time looking for the best direction. Good luck Siege Master!

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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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Utilize the effects of gravity, and strategically transform blocks in order to rid the game screen of all purple characters! Playable on Android and iOS mobile phone, tablet, laptop, notebook and desktop PC, Transforming Blockies is a fun, physics, gravity and timing-based puzzle (for elementary school age kids, middle & high school students) where you must use the special transformative power of each shape character to logically alter the game environment in order to eliminate all purple shapes from the platform-based levels. Some colored shapes change from round to block-like and vice versa, while others double in size when you click or tap on them. You must cleverly use these transformation actions to your advantage in each of the 40 increasingly-difficult levels. Remember: Eliminating the purple characters is your goal, and if you accidentally get rid of other colors, you fail the level!

This online, multi-level, HTML5-based, physics-based engineering puzzle game should work on iOS and Android devices as well as most web browsers for PC / Mac. To play the game with full screen, you may have to turn your device horizontally. Skills required include fast and tactful reactions as some levels require multiple transformations in quick succession. An appreciation for the effects of physics is also needed as you must use gravity to get shapes moving in many cases. Good old trial and error determination, common-sense logic, sharp analytical thinking, and creative engineering skills also come into play as you attempt to alter the game environment successfully in all 40 levels. 

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Skillfully guide a rolling alien character to its spaceship in 28 increasingly-difficult, physics-based, platform levels! Aliens Hurry Home is a cute yet challenging, escape-the-level game and brain teaser where you must use delicate keyboard control and problem solving skills to maneuver a circular alien creature through a series of obstacle-filled levels. Slide your alien hero through narrow spaces, leap over spiky enemies, and overcome all kinds of pesky hindrances on your quest to return to your home planet!

Skills required: As in most platform puzzle games, good focus, concentration, sharp reaction skills, coordination, timing, smart analytical thinking and anticipation skills, great determination, patience and stamina are all key ingredients toward your success.

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Push cute animals toward an exit door by removing stone obstacles and altering the game environment with tactful and accurate mouse clicking! Zoo Escape is a cool, multi-level, physics and timing-based, problem-solving puzzle where you must help motionless zoo animals to ‘escape-the-level’ by pushing, propelling and guiding them toward the exit. Your principle action here is clicking to remove stone blockades – which causes objects to fall and subsequent chain reactions that (hopefully) push the animals to their Exit Door.

Skills required: This fun yet challenging, interactive point-and-click brain teaser game requires tactful mouse clicking, good coordination and anticipation skills, shrewd analytical thinking and problem-solving determination. Some later levels require great patience, stamina, and the key ability to learn from your mistakes (through good old trial and error).

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Play a cute and clever physics and gravity-based puzzle game with a real sting in the tail! Flight of the Bee is a very challenging, interactive, problem-solving brainteaser where you must carefully and strategically guide a floating bee toward his hive in each level. Utilizing a mixture of smooth mouse control and clicking, with good visual awareness, you must decide when and where to maneuver the bee - depending on the various obstacles and hindrances in each level.

This fun and engaging, analytical thinking-based head-scratcher provides a stern exercise and test of your concentration levels as well as your reactions, timing, hand-eye coordination and mouse-control skills.

A basic understanding of physics and the effect of gravity are important as you try to gauge the optimum moment / area in which to start the ascent or descent of your bee. We think you might get a ‘buzz’ from this tricky, platform-based puzzle!

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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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Exercise your creative engineering skills, talent for physics-based problem solving, and flair for the spectacular as you create your very own awesome rollercoaster tracks! Rollercoaster Creator 2 is a highly-interactive, theme park construction game and physics-based puzzler (with fun sound effects) for older kids and teens where you must design working rollercoasters in each level. Your ride creations must follow a certain path to collect a set number of green crystal gems, and deliver your fun-loving patrons safely to the end of the ride, especially after some interested and wacky features!

Reasons to play this challenging, virtual building activity: Stimulate your creative engineering side, analytical thinking and strategy skills as you attempt to create fully operational rollercoaster rides with deft use of your computer mouse.

Strategy to win: Each level features a unique set of construction-based tasks. Drawing with your computer mouse is a key part of the game, so you definitely need a steady drawing hand, accurate mouse-control coordination, and a cool head to complete each challenge. A willingness for and acceptance of trial and error is also essential – You won't build a top quality rollercoaster on the first attempt each time – So learning from past mistakes is key to your success here. You must identify the areas of your coaster that need altering, and tweak your building work accordingly. Happy rollercoaster creation!

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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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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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Piggy in the Puddle 3 is a challenging, physics-based puzzle game where you interact with the mechanical environment in order to push, pull, and propel a pink piggy into his favorite bath of mud! Each of the 28 increasingly-difficult levels features helpful animals and other interactive objects that can be activated with your computer mouse; hopefully causing a chain reaction that dunks your piggy hero into the muddy puddle!

Skills required: This tricky, point-and-click, brain teaser game requires sharp analytical thinking and problem-solving skills, precise mouse clicking, good anticipation skills, and a shrewd sense of tactical awareness. Timing is very important because you can transform your pig from a rolling ball into a solid square at any moment! Many of your interactions with the game screen must be done in a specific sequence, so lots of trial and error comes into play in later levels.

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Fans of challenging, interactive, physics-based brain-teasers should enjoy this fun exercise played against the clock: Figure Shaper is a demanding, multi-level, physics puzzle game where you must carefully and cleverly change the shape of green block characters in order to guide one of them to the Finish Gate in each level (through falling, rolling, tumbling, or being dragged).

Your analytical thinking and creative engineering problem-solving skills really need to be sharp here. Good focus and concentration levels combined with fast mouse control and reactions are also key abilities required as you attempt to quickly alter state of the characters and game environment to your advantage. Happy shape-shifting!

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Become a true demolition expert, and prepare yourself for a career in the civil engineering world of controlled explosions! Extreme Explosions is a challenging, physics-based destruction game where you have to carefully demolish structures of buildings using two forms of explosive - bombs and sticks of dynamite! Use the law of gravity to bring wooden and steel structures tumbling to the ground through utilizing your toolkit of carefully placed explosives.

This bombbastic engineering activity requires that you place your explosives efficiently and precisely in order to cause the maximum damage required. Use your creative engineering skills to ensure that the building structures collapse the way you planned, and that they fall below an indicated height. There’s plenty of potential trial and error required, so you’ll need the patience and determination of a truly skilled construction professional to succeed. BOOOM BOOOM! Happy demolition!

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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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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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