The project determines which laundry detergent is best for cleaning clothes.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

This project examines whether people's taste perception is influenced by what they see.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

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

This science fair project idea determines the most effective method of preserving food.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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

Examine the effect of pressure on carbonation in soda.

This science fair project idea explores the egg's thin membrane.

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

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.