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Listed under:  Science  >  Earth and space  >  Earth structure  >  Earth's crust  >  Weathering
Interactive

Light and shadows

Look at how a tree makes a shadow during a sunny day. Notice that objects always casts shadows that face away from the Sun. Examine how the shape and position of a shadow is related to the time of day and position of the Sun. Explore the shadows cast by different objects such as a bike, an umbrella and a child. Position ...

Interactive

Energy-efficient house

Explore how the temperature inside a house is affected by air flowing in and out. Look closely at the energy effects of design variables in a house such as insulation materials, window coverings and window direction. Build a house with maximum energy efficiency by adjusting key design variables. Change the house design ...