Kids practice identifying solids for a lesson on the states of matter in this 1st grade physical science worksheet.

Kids practice identifying liquids for a lesson on the states of matter in this 1st grade physical science worksheet.

Help your child's curiosity blast off by introducing them to some basic chemistry with this simple rocket demonstration.

Is orange juice a solid or liquid? What about a cookie? Practice classifying everyday objects in this first- and second-grade states of matter worksheet!

See if you can identify the objects that let light pass through them with this kindergarten and first-grade worksheet!