Mass and weight science

Do your physics or physical science students know that mass and weight are not the same thing? These two terms are often used interchangibly by not just students but many people!

Mass or Weight? What's the Difference? Science Questions for Kids

Visit to learn about mass and weight differences (mass and weight physics, teaching mass and weight)

Learn the difference between mass and weight. See how to measure mass and use units correctly. Get mass vs weight activities.

Mass is the number of atoms in an object combined with the density. This picture shows that even in low/no gravity an object still has mass

Learn the difference between mass, weight & volume. Discover why these concepts are important in chemistry.

Mass and weight anchor chart

Free physics topical resources

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Use a balance to measure mass and a spring scale to measure the weight of objects. Compare the masses and weights of objects on Earth, Mars, Jupiter, and the Moon.