Introduction to Space Systems Unit 1 Lesson 1

Based on the title, what might students expect to learn about in this material?

• The Solar System, Moons, and Galaxies

• The history of Earth’s continents

• The process of photosynthesis

• The structure of atoms

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What are space systems?

• Groups of objects and processes in space, such as planets, stars, and moons

• Only the planets in our solar system

• Only the stars in the universe

• Only the moons orbiting planets

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Why do we study space?

• To understand its importance and learn more about the universe

• To find new places to live

• To make new friends

• To learn how to swim

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Imagine you are an astronomer. How would you use scientific models to explain the solar system to your classmates?

• By showing a model of the solar system and describing the positions and movements of planets, stars, and moons

• By drawing only one planet

• By talking about animals in space

• By ignoring the positions of planets

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What is the study of stars, planets, and everything in space called?

• Astronomy

• Biology

• Chemistry

• Geology

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If you wanted to learn more about the planets in our solar system, which method would you most likely use first?

• Observation

• Cooking

• Painting

• Singing

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Why might a scientist use a model when studying space?

• To help understand or explain something complex

• To travel to another planet

• To make music about the stars

• To grow plants in space

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What is the atmosphere?

• The layer of gases that surrounds a planet or moon.

• The solid surface of a planet.

• The core of a planet.

• The rings around a planet.

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What is the greenhouse effect?

• The process of plants growing in a glass house.

• Certain gases trap heat in a planet's atmosphere, keeping it warm.

• The cooling of a planet due to lack of sunlight.

• The movement of tectonic plates.

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How do gas giants and ice giants differ in their composition?

• Gas giants are made mostly of gases, while ice giants are made mostly of icy materials.

• Gas giants are made mostly of rocks, while ice giants are made mostly of gases.

• Gas giants have no atmosphere, while ice giants have thick atmospheres.

• Gas giants are smaller than ice giants.