###### Worksheets and lesson ideas to challenge students aged 11 to 16 to think hard about earth and space (GCSE and Key Stage 3)

*All students will be amazed by this video of life inside the International Space Station. It serves as an excellent introduction to forces and space, motivating students to want to know more. Students can watch the video and write down any questions they would like to ask the astronauts. Discussing these questions can serve as a platform to identify any misconceptions students may have about gravity, forces and space. **
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#### Building scale models of the Solar System

Key Stage 3 and GCSE scale model of the solar system. Students create a scale model of the solar system. They devise their own scale to show the different diameters of the planets and their distance from the sun. It is an excellent way to introduce the concept of scale models and why they are useful to scientists. Sean Kohut contributed this resource. (PDF)

Check out this excellent link to help students appreciate the scale of the universe. Many students struggle to appreciate scale. This animation allows students to zoom in and out of the universe. They observe the relationship between atoms, cells, organisms, planets, the solar system and the universe.

#### Planets, years and orbits

Key Stage 3 worksheet on planets, years and orbits. Students work out how old they would be if they lived on Mars. This is an interesting way to introduce the solar system. (PDF)

#### Satellites and orbits

Here is a nice 3D interactive satellite-tracking applet from NASA. It is really useful for teaching the different types of orbit.

Use this activity to assess students’ prior knowledge of satellites and orbits.

#### Day and night

Ask students to describe how temperature changes over a 24-hour period and explain why this happens. The cartoon below offers a simple but powerful simulation to day and night. (Link to worksheet on describing temperature changes)

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