2nd - 4th Grade Science Activities : Page 20

This science fair project idea compares biodiversity between drops of water.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

If your mom likes flowers, make her a sweet gift that she'll treasure with this fun craft, a pretty Pressed Flowers Card!

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Invite your third grader to do taste test science to observe how a strawberry tastes when it is paired with various condiments. The results may be surprising!

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

This clay "painting" activity encourages and supports creative development and critical thinking skills.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Your child can explore the wonders of science, and the concept of dehydration, along with creating a healthy and tasty treat!

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.