Encourage your child to take a nature walk, using the prompts on this worksheet to write and draw their observations of plants, animals, sounds, and more.

Introduce children to physicist Albert Einstein — and a bit of theoretical physics — with this mini biography.

Learners will discover what heat waves are, and how they are connected to global warming, in this two-page earth sciences worksheet.

Learn about the plants and animals that make deciduous forests their home, then complete the crossword puzzle.

Learn the ins and outs of one of the body's most important organs: the heart!

During the Gold Rush, people weren't sure if they found gold or something else, and these easy steps would help them be sure.