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Elementary School Earth & Space Science - Science Fair Project Ideas

Great selection of elementary school science fair project ideas. These science fair projects can help you find elementary school level ideas for your science fair.

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Here is a fun science fair project idea for elementary school that explores and demonstrate a total and partial solar eclipse when the Moon covers the Sun.
Shadows: How Can the Moon Cover the Sun?
Elementary School
Astronomy
In this science fair project, you'll make a 'ghost' appear in a test tube, and learn about what happens when hot water and cold water interact.
The Ghost in the Tube
Elementary School
Weather and Climate
Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.
Rainbow in a Jar
Weather and Climate
Second Grade
Check out this cool science fair project idea to explore amazing and fun facts about plants found in cold deserts.
Cold Desert Plants
Elementary School
Ecology
Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.
Energy Efficient Windows
Environmental Issues
Fifth Grade
What causes wind? What causes the wind direction? Do this free science fair project and explore how wind move and what cause it. Project for elementary kids.
On the Move: What Causes Wind?
Elementary School
Earth & Space Science
Which material heats up faster - water or soil? Do this free science fair project and find out. This is a great science observation for elementary students.
More Heat: Which Warms Faster- Water or Soil?
Elementary School
Earth & Space Science
The purpose of this science fair project is to investigate whether we can simulate how craters are formed and predict their size and shape.
Craters! Can We Simulate How Craters Are Formed and Predict Their Size and Shape?
Elementary School
Astronomy
How do organic materials become soil? This science experiment measures what materials biodegrade.
Dig This: Biodegradation
Elementary School
Ecology
This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.
Can Hydrogel Crystals be Used as a Sensitive Humidity Indicator?
Weather and Climate
Fourth Grade
The objective of this science fair project idea is to examine the reservoir capacity of different rocks.
What is the Reservoir Capacity of Different Rocks?
Geology
Fourth Grade
How does the curved shape of the earth affect the world's climate? In this free science fair project, you can find why. A great science project for kids.
Straight On!: How Does the Curved Shape of the Earth Affect the Climate Throughout the World?
Elementary School
Earth & Space Science
This science fair project idea measures and compares effects of chemical weathering specifically carbonation on several rock samples.
Effects of Chemical Weathering on Rocks
Elementary School
Geology
This science fair project idea researches the effects of acid rain on plant growth.
Effects of Acid Rain on Plant Growth
Elementary School
Ecology
In this free science fair project, learn the process of fossil formation by making a fossil mold with shell and clay. A great science project for kids.
Rock Record: What are Fossils?
Elementary School
Earth & Space Science

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