Get wise about wind! Even though you can't see it, wind is a powerful force caused by changing temperature in the air.

Does an acorn weigh more than a swan? Your kindergartener will learn about comparing weights by ranking from lightest to heaviest.

How big is each piece of fruit? Help your child learn about measuring sizes, small, medium and large, with this fun worksheet!

These alien buddies are all different heights, can you tell which is tallest? Help your child learn about height with this measurement sheet.

In this playful illustrated worksheet, learners must rank items from shortest to longest.

Help your child practice his skills with volume with this printable worksheet, which asks him to estimate how much liquid things can hold.

Introduce your student to the concept of length, and have her order these items from shortest to longest.

This measuring and alphabet worksheet gets your child comfortable with a ruler while he works on letter recognition.

Straighten out your drawing skills with a fun ruler worksheet! Practice using the ruler to draw straight lines, create patterns, or make shapes.

In this playful illustrated worksheet, learners must rank items from shortest to tallest.

Children practice estimating and comparing relative length in this engaging ordering worksheet.

Help your child practice his skills in measuring with this printable worksheet, which asks him to measure the length of household objects.

For each item on this first grade science worksheet, kids match a piece of clothing with the thermometer showing a temperature for wearing the item of clothing.