The Sky (Earth Science)

Key Vocabulary

1. star

   A star is a bright object in the sky that makes its own light.

2. sun

   The Sun is the star closest to the Earth. The Sun gives us light and warmth.

3. moon

   The moon is the round object that moves around the Earth.

4. planet

   A planet is an object that moves around the Sun.

5. rotate

   Rotate means to spin. Day and night happen when the Earth rotates. clockwise. counterclockwise.

6. object

   An object is a thing that we can see and touch. matter.

7. galaxy

   A group of stars

Visual Summary

The Sky above

object	picture	feature
the sun		the brightest object in the sky. the star closest to Earth
the moon		a ball of rock that moves around the Earth
stars		objects in the sky that make their own light
planet		a very large object that moves around the Sun

Exercise

Match each word with its definition:

1. a thing that we can see and touch. (object)
2. the round object that moves around the Earth. (moon)
3. the star closest to the Earth that give us light and warmth. (sun)
4. a bright object in the sky that makes its own light. (star)
5. to spin. (rotate)
6. an object which moves around the Sun. (planet)

Up Close

What causes day and night?

The sun shines on different sides of Earth as it rotates.

True of False

Reading passage/section

Every day, the Sun looks like it is moving across the sky. But actually the Sun is not moving. The Sun looks like it is moving as the Earth rotates.

When the side we live on faces the Sun, we have day. When the side we live on turns away from the Sun, we have night.

In the day sky, we can see the Sun. The Sun is a star. A star is an object that makes its own light. The Sun gives light and warmth to the Earth.

There’s no sunlight in the night sky. In the night sky we can see planets, stars and the moon. Plants are objects that move around the Sun. The Earth is a planet. The moon is the object that moves around the Earth.

Planets, stars and moon look small because they are far away from the Earth.

Reading skill

Main Idea and Details

The Earth rotates.

1. day

   We can see the sun. The sun gives (light) and warmth to the Earth.

2. night

   A (planet) moves around the sun. The (moon) moves around the Earth. A (star) makes its own light.

Comprehension

1. In the night sky, you cannot see (Sun).
2. What is the planet we live on that moves around the Sun. (the Earth)
3. The moon and planets look small because (they are far away from the Earth).
4. The side of the Earth that is facing the Sun (has a day and you can see the Sun).

source

From American Textbook Reading Science 09 Grade 2 41:42