3rd - 5th Grade Science Activities : Page 15

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

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

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

In this project children practice the scientific method while playing with puffy paint.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

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.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

In this science fair project, students create their own miniature salt flats at home.

This science fair project idea produces sounds by creating vibrations using different objects.

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

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

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!

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.