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Gravity, Relativity, Mass, & Weight

Teaching Resources & Guides, Earth & Space Projects, Science Lessons

According to Sir Isaac Newton’s Law of Universal Gravitation, all objects that have mass are attracted to each other. Mass is the measure of an object’s matter (what it’s made up of). The greater an object’s mass, the greater its gravitational...

The Solar System: Lesson Plan

Earth & Space Projects, Worksheets & Printables, Science Lessons

This lesson for late elementary students (grades 3 – 5) teaches about Earth and Space science using an inquiry approach. It covers objects in the sky and changes in the earth and sky, as students learn the size of each planet, the vastness of space, and some special features of our solar system.

Learn about Cells

Science Lessons, Middle School Projects, High School Projects, Life Science Projects

Cells are ‘building blocks’ of life: all living things, whether plants, animals, people, or tiny microscopic organisms, are made up of cells. Although a cell is only about 10 micrometers across (one micrometer=one millionth of a meter!), there is still...

Butterfly Science Activities

Elementary Projects, Life Science Projects, Science Lessons

Help kids learn about butterflies, from caterpillars transforming into adults, to how adult butterflies eat.

Bacteria, Protists, & Viruses

Teaching Resources & Guides, Life Science Projects, Science Lessons

Learn about the bacteria, viruses, and protists that are all around us.

Learn About Leaves

Life Science Projects, Worksheets & Printables, Science Lessons

Science Lesson What Are Leaves For? Leaves are very important for trees – they provide food for the whole tree (or plant)! How do they do it? Leaves use a very special process called photosynthesis (say: foto-SIN-thuh-sis) to convert energy from sunlight...