3rd and 4th Grade Science Projects Activities : Page 8

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

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

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

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

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.

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.

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.

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.

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

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!

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

This science fair project idea explores whether white light can be separated into different colors.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!