Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Discover flight initiation distance as you play around in the park with this fun bird watching project!

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

In this project children practice the scientific method while playing with puffy paint.

Household items and a bit of imagination will create a CSI kit for your child to have investigative adventures with. Explore the world of forensic science!

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot move in a pattern related to the sound and rhythm of music.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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.

In this project students experiment with making music using only glasses of water.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

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.

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

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

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.

Learn all about balance and motion as your child designs a corn maze!

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

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Challenge your learner to design and build a city of their own in this creative engineering activity.