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To Third Grade!!


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Click on any of the subject areas to quickly get to that section of the 3rd Grade Page.

Matter, Energy, & Forces

Rocks & Minerals

Simple Machines

Habitats & Ecosystems

Matter, Energy, & Forces

How much do I weigh on the Moon? -Go to the weighing station to find out!  As you   learned in class, gravity is the force that pulls things towards the center of the Earth.  When we weigh something, we are actually measuring this force! Your bodyweight will be different, depending on what planet you're standing on!

Changing States of Matter -Find out what happens when you continue to apply more and more heat to a solid block of ice.  Continue to click on the "Heat" button in this activity!  You just might be surprised with what eventually happens!!

Solids & Liquids -When we learned about physical changes in class, we learned that all solid matter can change into a liquid if you give it enough energy in the form of heat.  In this activity, test various kinds of matter by heating and cooling them.  Find out which materials have a higher melting point and which materials cool quickly.

Characteristics of Materials -This activity lets you experiment on a wide variety of different materials.  When you are finished, you will discover which materials are flexible (Can they bend?), which materials are transparent (Can you see clearly through it?), which materials are waterproof, and which materials are strong.

Reversible & Irreversible Changes -When we explored the differences between chemical and physical changes in class, we discovered that physical changes could easily be "reversed" or changed back to their original form.  In this activity, you will perform various tasks of dissolving, heating, and filtering to discover which materials undergo reversible & which materials undergo irreversible changes.

Changing States - As we learned in class, when ice melts it's a physical change because whether it is a solid or a liquid, it's STILL water!  See if you have the survival skills in this activity to turn frozen ice in the the cold environment of Alaska to drinkable water.  Once you have finished all parts of the adventure, be sure to play the quiz!

Melting & Boiling - As we learned in class, when ice melts it's a physical change because whether it is a solid or a liquid, it's STILL water!  We also learned that ice melts when it is placed in a warm enough environment, but did you know that all matter can melt and turn into a liquid?  Many materials melt at much higher temperatures than water does.  In this activity, test three different mystery materials and discover their melting point & boiling point.

Chemical and Physical Changes Lab -See if you can correctly identify which changes are chemical changes and which changes are physical changes.

Chemical & Physical Changes Quiz - In class, we discovered what the differences were between a chemical change and a physical change.  See if you can correctly identify which changes are chemical changes and which changes are physical changes in this quiz.  See if you can get a perfect score of 20!  Click the "Start Now" button to begin your adventure!

Floating & Sinking - What would happen if we dropped a ball into a jar of honey?  How long do you think it would take for the ball to sink to the bottom of the jar?  What if we dropped that same ball into different kinds of liquids?  Would the ball sink to the bottom at the same speed?  In this activity you get to experiment with 4 different kinds of liquids doing just that!  Once you have collected your data, create a bar graph using that data.

Exploring Density - This activity allows you to compare how different items float or sink in different liquids. Be sure to use the drop-down menu to change liquids.  Just click and drag the different items into the liquid container.  Based on your experimentation, which liquid is the MOST dense in this activity??  Be sure to click "Launch Gizmo" to begin your adventure!

Separating Mixtures Lab -In class, we learned that mixtures are combinations of two or more different substances put together that can easily be separated.  But did you realize that there are many different ways of separating mixtures?  Play this activity to learn more.

Mixtures & Solutions -In this activity, you dig around and find things in a junk yard. Add them to your bucket of water to see if they form a mixture or a solution.

Measuring Mass -Find out which material has the most mass- Air, Water, Oil, or Helium.  Place each item on the scale like we did in class.

Forces & Movement -In this activity, drag the red handle back to the yellow light to give the truck a little push.  Find out how far the truck travels.  Be sure to test the larger truck as well.  Does it go as far?  Why or why not?

Forces in Action -In this activity, see how far the truck travels when you increase or decrease the slope.  You can also see how placing different sized parachutes and different sized weights  on the back of the truck affects the motion of the truck as well.

The Energy Resource Game -Which energy resources are non-renewable?  Which energy sources are inexhaustible?  Play the energy resource game to find out!  First, identify the resources, then click and drag the item to one of the 3 black holes.  If you identify the resource correctly, it will disappear!

Strange Matter- The Transformer! -In this activity, you get to transform or change matter into different things by heating them, beating them, or by chemically treating them.  Find out what happens when we take the raw materials of silicon, iron, and carbon and put them through the transformer!

Strange Matter-The Crusher! -Which materials are the strongest? In this activity, you get to crush all sorts of different types of materials.  Click on different contests and find out who the winners are!  Remember: The strongest material crushes last!

Strange Matter-Zoom! -Discover the incredibly small world where materials scientists do their work by zooming inside a soda can.  Click on the red arrow to begin your adventure!

The Great Balloon Race -Why do hot air balloons rise?  It all has to do with density!!  The more packed together something is, the more dense it is.  As we have discovered in science lab, when matter is less dense, it tends to float.  When matter is more dense it tends to sink.  But how does this work with a hot air balloon?  Well, when the air inside a balloon is heated, the air molecules move around faster and spread out, becoming less dense.  That's why a hot air balloon rises!  To lower the hot air balloon once again, we allow the air in the balloon to cool down.   See how good your air balloon flying skills are in this activity.  See if you can beat my personal best score of 2:00 minutes for the "easy" race!

Line Rider -See if you can carefully design a sledding track that will allow our sledder to make a successful run down the track.  Be sure not to make your slope too steep!  Have fun and good luck!

Other Great Websites about Matter, Energy, & Forces

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Simple Machines

Edheads Simple Machines -This is one of the best activities that I've ever seen on simple machines. Be sure to check out all four rooms in the house to learn about simple machines.  Also, be sure to check out the tool shed to learn about compound machines.

Edheads- Compound Machines -Just when you think it doesn't get any better than the first Edheads simple machine activity, they come out with another one that it even MORE creative!  See if you can get a perfect score of 120 points in this activity.

Build a Rube Goldberg Machine! -Using levers, pulleys, and ramps build your own Rube Goldberg machine.   See if you can adjust these simple machines to lift the clown.  Good luck!

Simple Machines in a Lawnmower -It always amazes me just how many simple machines are around us at all times.  See if you can find all the simple machines in a lawnmower.

Move the Moai Statues of Easter Island -Do you remember trying to solve the mysteries of Stonehenge in class?  Well, this is a different mystery.  About 3,000 years ago the people of Easter Island, a tiny little island in the Pacific, moved and built these really cool 14 ton statues called Moai Statues. This activity lets you be the boss of Easter Island.  You direct the people so that they can be successful in moving these statues.

Mysteries of the Nile -In class, we learned how the ancient druids moved the stones of Stonehenge using simple machines.  We also learned how they were able to move them upright as well using levers.  The ancient Egyptians up righted their obelisks using similar methods.  Click here to learn more.

The Adventures of Twitch the Robot -This really fun activity comes from the Museum of Science & Industry in Chicago.  See if you can help Twitch get the spare parts that he needs to help rebuild his robot!

Other Great Websites about Simple Machines

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Rocks & Minerals

The Virtual Rock Laboratory!-What kind of rock floats in water?  Which rocks split easily?  What kinds of rocks are more resistant to wearing away?  Find out the answers to these questions & more by testing various rocks in your own virtual laboratory!

Name That Rock! -This activity is one that I built and designed myself.  Play this game to learn about some of the most common rocks in the world.

The 15 Most Wanted Quiz Game! -This activity is one that I designed for my sixth graders.  It will also help you learn to identify some of the most common rocks found throughout the world.

rockybig.gif (14609 bytes) Take the Rock Hound Quiz -Name the type of rocks correctly and see if you can earn yourself a Rockhound Expert Award!

Rock Sorting Laboratory -When you think about it, there are so many different ways to group rocks based on their properties.  Just to name a few ways: You could group rocks by their color, their luster, their texture, or by how they form.  See if you can group the rocks in this activity by a particular property.  Be sure to label each pan based on the property that you used.

Build a Rock Chain -In this activity, build a chain of rocks with similar properties.  This activity is fun to play with a partner. Have one person place a rock in the path. The second person picks another rock that has a similar property to the one that was placed in the path by the first person.  Continue to build a chain of rocks that share a property with the rock before it.  See how long a chain you and your partner can build! 

Moh's Drill & Castle of Doom! -Learn about Mohs' Mineral Hardness Scale while escaping the Castle of Doom! The walls are closing in on you. To escape, you must drill through the walls.  See if you can find the right drill to blast through the wall.

Earth Materials Scavenger Hunt -Did you ever stop and think about all of the things around us that are made of different sized pieces of rocks? See if you can find all of the things in each scene that are made of different sized sediments. BE SURE TO USE THE ARROWS to help you navigate the whole scene.  Otherwise, you won't be able to find all of them! Also, be sure to click on the bottom words to learn about each of the different sizes of sediments.

Shape it Up! -In science lab, we explored how the Grand Canyon was formed by the powerful eroding force of water.  This activity explores how wind, water, volcanoes, and glaciers have an impact on the shape of our land over time. Be sure to play this game more than once!  Although, you might get the same landform with the same erosional force, it might be showing you a different length of time!

The Virtual Stream Table Lab -Did you enjoy the work that we did with stream tables?  There are so many really cool experiments that can be done with stream tables.  This activity allows you to compare 2 stream tables at the same time by changing one variable in the experiment.  The variables (the thing you change in an experiment!) include the length of time, the slope, the stream flow rate, and type of material.  I recommend that you click on "View Stream Table" first!  Then click on the RED "?" in the upper right corner of the screen.  It will explain all of the variables as well as how to conduct the different experiments.

Landforms Created by Erosion -Click on different parts of the U.S. map to see the different types of landforms that have all been created by forces of erosion.

rex.gif (4754 bytes)The Mystery of the Floating Rock -Did you know that some rocks can actually float in water?  In our unit on matter, we learned why some things sink and why some things float in water.  Help Rex the dino detective unravel the mystery of the floating rock.

rex.gif (4754 bytes) The Mystery of the Broken Necklace -Help Rex the dino detective solve the mystery of the broken necklace and learn all sorts of cool things about fossils along the way!

rex.gif (4754 bytes) The Mystery of the Golden Cube -Help Rex the dino detective figure out what the golden cube is made out of. Is it a rock, mineral, or a fossil.  Help Rex perform a number of tests on the golden cube to figure out what it is made of!

Other Great Websites about Rocks & Minerals

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Habitats & Ecosystems

Worlds Within the Sea -See if you can follow the clues until you have connected all of the creatures in each of the three ocean ecosystems: The Deep Sea, The Coral Reef, and The Continental Shelf.

Habitats of the Rainforest -This game is similar to the one above, except that it explores three different ecosystems found in the rainforests of the Central African Republic: The Forest, The Bai, and The River. Click on each of the three boxes to begin your adventure.

Life in the City -You might not think that the city would be a habitat that would support a great diversity of life. This activity takes you to a city park and gives you a closer look at the surprising world around us!

The Blue Planet Challenge -Coral reefs at sea have been closely compared to rainforests on land. Both of these habitats are quite complex and are extremely delicate. Play the Blue Planet Challenge to learn more about the devastating effects human activities can have on coral reefs.

Dive to the Abyss -This activity lets you become a virtual scuba diver who needs to collect samples of animals that live deep within the ocean.

Fun with Food Webs -See if you can put all of the plants and animals in the correct spots for three different types of food webs- meadow, arctic, & pond habitats.

Build an Aquarium -All ecosystems work by living in balance.  In this activity, create an environment that will keep your aquarium alive for at least 30 days!

Build a Fish -See if you can design a fish with the right adaptations to survive. Try different combinations and see which ones work together.

Food Chain Reaction -A lot of people don't realize just how much the survival of each plant and animal affects the balance of a food web.  Play this game to learn more.

Recycle City -Click on different parts of the map to learn more about Recycle City.  Then play the Dumptown Game to learn more about the ways in which we can recycle, reduce, & reuse waste.

The Great Habitat Match-Up -The place in which animals live is called their habitat. See if you can match all of the animals with their habitats.

Habitats & Food Chains -This activity features a woodland and a pond habitat.  Take pictures of 8 different organisms that live in these habitats.  Be sure to click on the magnifying lens to learn more about each organism.  Also, see if you can correctly create 2 different food chains using organisms from these two different habitats.

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