3rd - 7th Grade Science Activities : Page 19

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

What better way to celebrate spring than with a fabulous flower party? Pack the day with fun flower activities and treats for a truly springalicious event!

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

Which do you prefer: real or artificial? Try this sweet little taste experiment to help your kids develop a better awareness of the food they consume.

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

Is your child a young ornithologist in the making?

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Who needs paint, glitter, or crayons when you have natural art supplies right outside your front door?

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

This first grade science activity brings the green grass of early spring inside while teaching your child about the cycles of growth.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

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.

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.