Gravity, Relativity, Mass, & Weight
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
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
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
Help kids learn about butterflies, from caterpillars transforming into adults, to how adult butterflies eat.
Bacteria, Protists, & Viruses
Learn about the bacteria, viruses, and protists that are all around us.