Showing Results for three digit and two step word problems

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

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

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.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

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.

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

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

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

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

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

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

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

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 in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

This science fair project idea investigates whether plants can survive being frozen.

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

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

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

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

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

In this design challenge, your child will create a parachute for a small toy using typical household items.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.