Here's a math activity that uses coin riddles to help your third-grader improve his coin-counting and logical thinking skills.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

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