Unit 2: Discovering New Worlds

What does being a habitable planet mean?

• It has rain

• It has life

• It has landforms

Why does the distance to the Sun matter for a planet to have life?

• The sun provides a good temperature, light, and energy.

• The sun is a star in our galaxy

• The moon orbits the earth, and provides light at night

What other elements are needed for life?

• Dirt and mountains

• Oxygen and water

• Clouds and cars

Earth’s __________ is made of oxygen and nitrogen, which is needed for life.

• Galaxy

• Cars and trucks

• Atmosphere

What is a good temperature for life?

• Really hot

• Not too hot, not too cold.

• Cool and Cold

What are examples of life on Earth?

• Mountains and streams

• Stars and the sun

• Plants and animals

Organisms adapt to live in their _________.

• Habitat

• Atmosphere

• Cells

What is a plant in the desert?

• Gorilla

• Cactus

• Palm Trees

What do we need to breathe?

• Water

• Spaghetti

• Air

What helps plants grow?

• Sunlight

• Love

• Oil