Phases of the Moon
Move the Moon around the Earth and see how much of its sunlit half we can see from here.
Density: sink or float
Choose the mass, the volume and the liquid: does the object sink or float, and how much of it is under the surface? Measure the buoyant force.
In the learning section below the figure, predict, try, complete the tasks and check yourself with short questions.
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Seasons: tilt and the angle of light
Change the date and the latitude: how does the axial tilt change the angle of sunlight and the length of the day?
Light’s path through the air
Lower the lamp: air scatters blue light far more than red, giving a blue sky at noon and a red Sun at dusk.