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In this astronomy activity (page 3 of the PDF), learners will examine the effects of gravity on a person’s pulse and explore how gravity can differ from planet to planet.

In this online activity, learners build their own system of heavenly bodies and watch the gravitational ballet.

In this activity, learners use basic measurements of the Earth and pieces of rock and iron to estimate the mass of the Earth.

MarsBound! is an engineering simulation activity in which learners use realistic techniques to plan a mission to Mars.

Learners color and cut out a spiral-shaped snake. When they hang their snake over a radiator, the snake spins.