Earth & Space Science Projects

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Kids will love making clouds and learning how to make a water cycle model in this fun science fair project idea that explores evaporation and precipitation.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

In this science project, learn about soil porosity and measure the percent porosity of sand, silt, and clay.

How does mold grow? Kids find out by testing different conditions to measure mold growth rate and learn about what factors cause mold to grow more quickly.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Science fair project that illustrates the properties of black holes in space.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

In this science fair project, students use hot and cold water to simulate what happens when a warm front meets a cold one.

This science fair project idea measures and compares effects of chemical weathering, specifically carbonation, on different kinds of rocks.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

This science fair project idea researches the effects of acid rain on plant growth.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.