3rd Grade Science Activities : Page 5

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

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

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

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

This biodiversity project examines the biodiversity in your own backyard.

This science fair project teaches students about wilting and browning of salad greens.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

This project compares the strength of one, two, and three-ply toilet paper.

This science fair project idea explores the egg's thin membrane.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

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

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

This science fair project idea determines what household items are good conductors of electricity.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

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

In this experiment we will be determining whether birds prefer certain colors of seed.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

I scream, you scream, we all scream for homemade spearmint ice cream!

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.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

Test whether plants can grow without sunlight and water.

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

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.