Science games for kids online: Free science activities, interactive physics games, chemistry, biology games for kids (girls/ boys) in grade 3, 4th, 5th, 6th, 7th, 8th, 9th, 10th, 11th, 12th graders, for middle/ high school students on the internet, for PC, Mac with no download. Earth science/ learning activities.
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Online Science Games for Kids - Fun Interactive Activities

Rating: 7.4/10 - 65048 votes

Online science games for children, teens & Big Kids – Play fun interactive science games, educational physics-based games, chemistry-based games, biology-based games, engineering/ construction science problem-solving games and brain-teaser thinking puzzles on your computer. Activities for the classroom/ home-schooling elementary/ middle school/ junior & high school students. From simple fun games to more challenging and difficult exercises. Happy science discovery on Learn4Good.com! 

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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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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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Insurgo is a superb, physics-based tower building game, and a fun and realistic structure building activity for all the family (Find out who are the "engineers of the future" in your family or class!). The goal in this brain-teaser is to build the highest and most stable tower possible. It has to be perfectly balanced in order to remain stable and survive. Build as high as you can; watch your tower wobble in the wind; try not to let it overbalance, and cringe if it collapses to the ground! When your tower falls, you lose the game. You can see the tower height and your score at the top of the game screen. Happy building, and mind your head!

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Chemikul is an online science/ chemistry-based game that will send you on an atomic mind-bender of confusion - as well as provide endless hours of enjoyment! With super-slick ambient graphics and simple acoustics, it’s a learning experience that anyone can enjoy. The goal is to create molecules using all of the atoms floating in the game screen. There are six types of atoms and they all have different amounts of “Valence” (combining power), ranging from 1 to 6 in strength.

Win the game by using up the Valence of each atom. You can see the Valence number of each atom beside it – Used Valence/Full Valence. You need to be as fast as possible. Once the bar at the top of the game screen runs out, you lose. This experience is sure to set off chemical reactions in your brain. Give it a go!

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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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Play Are You My Blood Type? and learn which blood types match and which don't. The story - Some people have just been rushed to the hospital emergency department from a major car accident. They are rapidly losing blood and urgently need blood transfusions before the operations are completed. It is your job to match their blood types and save their lives. Match the blood type of recipient (bottom of the game screen) with the blood type of one of the donor's (top of the game screen).

The more pairs you match, the more points you get. A total of 10 patients will appear on the screen during each round. Click on a donor you think could be a perfect match for the recipient. The game has a time limit (indicated as a clock on the right side of the game screen), and with each new round you face, the time gets shorter. Your score, round and matches are shown at the bottom of the screen. The slickest part about this online game is to learn which blood types match. The table below will help you. Good luck Doctor, and save as many lives as you can!

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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Online Magic-pen-2 Game is an educational, physics-based drawing game that teaches how to overcome barriers using your logic and knowledge. Draw shapes and use the laws of physics to reach the target. Your goal is to collect the flags with the little red ball to complete a level. The shapes that you draw are affected by gravity, friction and inertia. Use these physical properties to your advantage. The red ball (or red square in some levels), is the object that collects the flags. Therefore draw the objects in such a way that they push the ball in the desired direction. Make clever use of the laws of physics to collect all flags on each level!

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Basket Ball 3: A Great Challenge is a tricky, physics-based puzzle and skill game for kids and teens that combines aiming, accuracy, power control, trajectory and rebounding judgement with fun basketball hoop shooting action. Featuring 25 increasingly-difficult levels, you must use good strategy and prediction skills to launch the ball toward and into the basket.

Reasons to play this fun, basketball-themed physics puzzler: Enjoy a simple aiming and accuracy-based challenge with no frivolous distractions – this is just you VS the basket! Test and exercise your prediction skills, analytical thinking skills, hand-eye coordination, mouse control, and determination while trying to conquer all 25 levels.

Strategy to win: Learning from errors and missed shots is a great way to progressively improve your shooting accuracy. You can study and note the numerical values of your angle and shot power, and adjust your next effort accordingly. There is such a small window for error here, and even a fraction more / less power or a touch of angle change can make all the difference. Good concentration levels are also vital. Each level has various blocking obstacles, so you need to remain focused, and smartly adjust your shot after each miss.

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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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Perfect Balance 3 - Get ready to become completely immersed in this addicting physics-based game, a pressure environment that is all about balance. Perfect Balance challenges your critical thinking skills and requires creativity as well as fast decision making because every second wasted means extra points lost. At times it may look impossible. It is great for non-standard thinking development with no ”out-of-the-box” solution.

Although it initially looks like a simple figure puzzle game created for 5-6 year old kids – it isn’t that simple. This is a game for all ages, and requires a basic understanding of science – gravity, mass, geometry and how balance-beams work. Perfect balance is considered when no object is wobbling or sliding. When an object is unstable – you can see some stardust glowing on the unstable object. Although unstable objects may stand still – they may have fractional motion and this is considered as “almost perfect balance”.

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WereBox Game is a fun, addicting, educational brain teaser game where little balls appear to be just ordinary balls, but of course, they are not. At first glance, the game may seem easy, however, level after level, it gets really tricky. This is a great game to play alone at home (or in the office!) with your family or at school as a team/group.

Your aim is to remove all the red objects from the game screen and leave the others by transforming balls into boxes. Note, in some situations that the red boxes cannot be transformed into balls. Use logic to solve all twenty physics-based puzzle levels. You will also need to be very quick in one or another situation as the ball cannot stop rolling once they begin. There are ‘Level select’ and ‘Restart’ buttons at the bottom of the game screen. However, you can only select from the levels you have already passed. Good luck and enjoy the problem solving!

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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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Play a tricky block-stacking construction game & physics-based puzzle that requires a deft problem-solving approach: Woodwork Builder: The City is a challenging, drag-and-drop construction game for older kids & teens where you must fill in an outlined area (on the screen) with a red block. This game also plays like a hidden crane operator simulation activity because the mouse control action and the movement and swing of the objects (blocks, beams and columns) very much feels like you are handling a crane jib control tool.

This game requires good visual awareness, analytical thinking and creative engineering skills, combined with steady mouse control and patience to carefully figure out the best way to create a firm structure or solid support tower that stays upright and provides a platform for your final (red) block to be placed.

This fun, problem-solving activity should prove a good exercise for fans of interactive construction puzzles and physics brain teasers. Ok Master Builder, pop on your hard hat, and let's get to work!

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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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Have you ever played an online BMX / FMX stunts game or roller coaster game and thought – ‘I could design a better track than that’? Well, if so, the time has come to back up that great opinion of your track editor talents by testing your creativity and engineering skills in one of the most popular track designing games online! Line Rider 2 is based on a simple idea yet is a very challenging and interactive physics-based game where you have the opportunity to design awesome "do it yourself" stunt & racing courses for a super-cool, daredevil sled rider known as Dude. Use a virtual drawing tool to create the kind of track that others could only dream of, and that you believe would provide an absolutely thrilling ride for your new scarf-wearing, sled-riding buddy. If Dude likes your creations, he'll keep returning to your theme park landscape for more and more..

As well as being a great game for artistic kids and for encouraging all young drawing enthusiasts to practice and improve drawing & design skills, and logical thinking, this fun and addicting DIY game is based on the laws of physics and gravity, and also could be used as a good, interactive classroom exercise for older kids and teens to help learn and get enthused about terms such as motion, dynamics, and spatial awareness. Ok Top Track Designers out there, are you ready? Let's see your amazing artistic skills in full flow!

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After a devastating asteroid completely destroyed your space station – your astronaut buddies became lost – scattered throughout outer space! However, the time has finally come to launch a daring rescue mission, and pick up your stranded pals before it’s too late! Rocket Rescue is a challenging physics and gravity-based puzzle game where you must become the hero of the day, and save your astronaut colleagues by launching your rocket toward them (bearing in mind the power of the launch, and the gravitational pull of nearby planets and asteroids in the galaxy). You cannot affect the path of your rocket after lift-off – so make sure your launch calibrations and calculations are as accurate as possible!

This fun and unusual brain teaser requires a basic understanding of physics and gravity – as you have to adjust the angle of your flight path, and take into account how gravity will affect your spacecraft. Utilize your steady hand and problem solving skills to make the precise alterations needed to your spaceship’s course line. Patience combined with dogged determination is the key to success here as there is a lot of trial and error required. Can you calculate correctly and save your stranded astronaut comrades? Good luck Captain!

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Build It: Wooden Bridge is a multilevel construction game and hard, physics-based, online puzzle for elementary school, middle and high school age players where you must display creative engineering skills and problem solving determination to construct sturdy wooden bridges that support a car's journey over a river. Featuring 35 increasingly-challenging levels, you must carefully and methodically drop the construction materials into the focus area, and hope that the awaiting car can safely travel across your structure without toppling in.

Reasons to play this tricky, logic brain teaser game: Solve physics-based problems in a fun, interactive way. Test and exercise your analytical thinking skills, creative mindset, and basic appreciation of physics as you attempt to build sufficiently strong bridges in each level.

Strategy to win: Good old trial and error plays a very important part toward your success here. If you fail with an initial attempt, try to figure out where you went wrong, and adjust your bridge structure accordingly. Think about and use gravity to your advantage in the construction process. Be observant of the car's progress across your creation – This can give you clues about where your bridge might need fine-tuning.

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Imperfect Balance 2 is an addicting physics-based game for kids & teens where you have to use your knowledge of balance and gravity to succeed. This fun game might make you question your own mental stability! Science has never been such wobbly enjoyment! This game is the exact opposite to the popular Perfect Balance game. The goal with this version is to make as many blocks and shapes fall off the screen as possible!

It’s fun to watch them fall (until they get stuck, that is!). Have a go – see if you can handle the delicate demands of gravity. You have to use the available geometrical figures (balls, squares, triangles, etc.) in a certain order and position in order to make all the pieces/shapes fall out off the game screen (by employing gravity).

It sounds simple but it can become a very fiddly task! It’s difficult to make all pieces and shapes fall (without leaving any standing and intact). Also, some of the pieces often get stuck and are very difficult to move (leaving you with a poor score). Plan your moves ahead! You don’t want to get any pieces stuck! With a high total score, you can unlock the next Level Pack.

You don’t need to beat every level completely to be able to continue, just make as many colorful blocks as possible fall off the screen. You can also destroy colorful blocks by other means (bombs etc.) A bomb destroys all but glass blocks. You earn 1 point for every colorful block that falls off the screen and 3 points for each block that is in the shape box when you have cleared the Playfield. A perfect strike gives you 5 extra points.

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Imperfect Balance is the complete opposite to the Perfect Balance game. Also, it may initially look like a much simpler task. For example, what could be easier than putting everything the wrong way so to make it fall down?  In fact, this is just a first impression. This addicting physics-based game, at times, is even more complicated when compared to its predecessor – Perfect Balance. The problem is to make all pieces and shapes fall (without leaving any standing). And when most of the pieces fall down easily, others get stuck for good, leaving you with a poor score.

You have to use limited geometrical figures (balls, squares, triangles, lines and some “force” objects) in a certain order and position in order to to make each and every piece/shape fall down through the force of the gravity. Your knowledge of geometry and physics finally can be used in practice – just by playing this game. Test yourself!

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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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