3rd Grade 4th
- Build a Bird
You have the chance to build a bird and place it in a habitat. Can you make one that has a good chance of survival?
- How Rocks Change
Are you ready for this challenge? See if you can tell what causes rocks to change over time.
- Interactive Water Cycle
An animated activity that lets you control the water cycle as you learn.
- Interactive Weather
Let the sun shine, or make the wind blow by changing
the temperature and humidity.
- Rock Around the Park
See how erosion effects the land.
- Rock Cycle
The clock is ticking. Can you beat the time and identify rocks and their class? Take the challenge!
- Balloons and Static Electricity
Why does a balloon stick to your sweater? Rub a balloon on a sweater, then let go of the balloon and it flies over and sticks to the sweater. View the charges in the sweater, balloons, and the wall.
- Changing Electric Circuits
Make and change electrical circuits.
This colorful site will help you understand series and parallel circuits.
- Circuit Construction Kit: DC
Experiment with an electronics kit! Build circuits with batteries, resistors, light bulbs, and switches.
- Mountain Maker, Earth Shaker
Push your mouse around to move continents and change the landscape.
- Beat the Heat
In this game things get hot fast! Your goal is to unscramble words about heat and temperature before the thermometer tops out.
- Changing Sounds Game
In this activity play instruments such as drums, the guitar and even a bottle. Experiment with ways to make different sounds.
- Go to the Head of the Solar System
Answer questions about celestial objects as they travel through the solar system.
- Gravity And Orbits
Move the sun, earth, moon and space station to see how it affects their gravitational forces and orbital paths.
- Gravity Force Lab
Visualize the gravitational force that two objects exert on each other. Adjust properties of the objects to see how changing the properties affects the gravitational attraction.
- Gravity Launch
Launch a rocket into space to see how the force of gravity can pull an object toward the earth and moon.
- How We See Things
In this activity you can drag mirrors into the path of light. How does this change the direction of the light?
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