2nd - 8th Grade Science Activities : Page 6

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

This science fair project teaches students the differences between fruits and vegetables.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

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.

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

In this design challenge, your child will make a bottle rocket using typical household items.

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.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

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

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.

Enjoy those warm spring and summer nights with your child while teaching some basic astronomy at the same time.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

Help your child learn about animal classification with this fun and delicious activity.

Make a spring collage with your child to get them outside and those creative juices flowing!

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

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

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?