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Give your second grader a chance to get his feet wet with measurement before he moves onto the more complicated stuff by trying this activity with him at home.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Got a shoelace? Got a kindergartener? Help your child learn to use the number line by creating one out of a lace.

This competitive inequalities card game is a great way to help your child understand the connection between numerals and the values they represent.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

A fun activity for a hot day, this will give young kids a chance to experiment with beginning science and math â and splash around in the process!

Here's an enjoyable at-home activity that gives your child step-by-step practice identifying the important parts of an article and organizing his ideas.

This measurement activity uses feet to compare objects, but not the ones found on rulers and measuring sticks...the feet on your child's own body!

Hone observational skills and introduce the basics of data interpretation with this data gathering activity all about the different colors people wear.

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

Play this fun math numbers game with your kindergartener! Practice following instructions as you roll the dice and count.

Build this game, and give your kid some hands-on practice ordering numbers. Soon your first grade kid will be Master of the number line!

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

In this fun math activity, second graders will learn to estimate items in a jar! 

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Sorting objects by size, color, shape, or function is an important concept in kindergarten math, and it's the perfect excuse for a little housekeeping!

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

How powerful is the reaction between baking soda and vinegar? Find out here!

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

This project explores whether music affects the growth and health of plants.

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

This first grade addition math game helps your child use critical thinking skills while practicing his computation.