3rd and 4th Grade Science Activities : Page 8

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

This Valentine's Day, pair up science and crafting with this simple crystal formation project that's sure to bring a little love into your home.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

Give your budding young observers a chance to discover simple machines at use in their own home.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

This biodiversity project examines the biodiversity in your own backyard.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

This science fair project idea provides evidence that air is everywhere and takes up space.

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

Science fair project that examines condensation and the conditions needed in order for dew to form.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

This science fair project idea produces sounds by creating vibrations using different objects.

This science fair project idea investigates the difference in reaction times between boys and girls.

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!