Showing Results for rounding three digit to the nearest 10

This project compares the strength of one, two, and three-ply toilet paper.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Find out whether putting something on top of a plant will inhibit its growth.

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

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

This science fair project idea determines if the color of light affects the growth of plants.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

This science fair project idea explores how length affects the weight a bridge can hold.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

This science fair project idea investigates the difference in reaction times between boys and girls.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

This science fair project idea explores substances that cause a bubble to last longer.

This science fair project idea explores whether talking to a plant will help it grow.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

This science fair project idea investigates if fats add to the flavor of food.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

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.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.