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This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Take advantage of the spring and summer sun in this arts and crafts activity that has your learner creating pretty flower prints.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

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

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Make a spring collage with your child to get them outside and those creative juices flowing!

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

This science fair project will help students learn about non-vascular plants, such as mosses.

In this fun activity, your child will create their very own solar oven to bake s'mores!

Explore if planting seeds in a certain direction will affect how fast it germinates.

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

This science experiment tests if dog saliva can really help heal wounds.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

Help your child plant a âtea garden": a garden made of herbs for making teas.

Make a planter full of delicious seasonings and classic grilling vegetables, great for a Fatherâs Day gift or a fun start-of-summer outdoor activity.

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.

This science fair project idea examines which type of insulation holds in the most heat.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.