3rd Grade Science Activities : Page 5

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

This science fair project idea explores substances that cause a bubble to last longer.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

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

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Make a backbone model to explore human anatomy and life science.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Do different types of oil mix or stack? Find out in this science fair project idea!

Clouds are formed when warm and cold air meet. Here's a way for kids to see it all up close!

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

This first grade science activity brings the green grass of early spring inside while teaching your child about the cycles of growth.

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

This science fair project idea examines which type of insulation holds in the most heat.

Test whether plants can grow without sunlight and water.

This science fair project idea determines which method of hand cleansing is the most effective.

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

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!

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

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

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

This science fair project will help students learn about non-vascular plants, such as mosses.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

This science fair project idea demonstrates that plants give off water.