4th and 5th Grade Science Activities : Page 11

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

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

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.

In this plant habitats activity, children play the role of an ecologist and take surveys of different areas to discover the best habitat for dandelions.

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

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

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!

Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

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

Give your budding young observers a chance to discover simple machines at use in their own home.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

This activity will introduce your child to the four different components of blood and give him a fun way to visualize its properties.

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

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

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

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

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.