Showing Results for estimating to subtract

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

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

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.

Science fair project that determines whether mass and weight are the same or different.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.