3rd - 8th Grade Science Activities : Page 12

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

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.

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

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Test whether plants can grow without sunlight and water.

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

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

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.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

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!

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

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.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

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.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

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

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

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