Our Sky

What is the main message of the chapter "Our Sky"?

1. The sky contains many fascinating objects, and observing them helps us understand nature and science better.
2. Only astronauts can study the sky.
3. The Sun and Moon are the same object.
4. The sky never changes.

Which instrument helps scientists observe distant objects in space?

1. Microscope
2. Telescope
3. Compass
4. Thermometer

Why do we see different phases of the Moon?

1. Because the Moon changes its shape.
2. Because different portions of the Moon lit by the Sun are visible from Earth.
3. Because clouds cover it.
4. Because the Moon disappears every week.

Which planet do we live on?

1. Mars
2. Jupiter
3. Earth
4. Saturn

Why is the sky blue during the daytime?

1. Because of the oceans.
2. Because sunlight is scattered by the Earth's atmosphere.
3. Because clouds are blue.
4. Because the Moon reflects blue light.

What is the Earth's position in the solar system?

1. First planet from the Sun
2. Third planet from the Sun
3. Fifth planet from the Sun
4. Last planet from the Sun

What is a constellation?

1. A group of stars forming a pattern
2. A group of clouds
3. A type of planet
4. A flying bird

Which object is found in the sky during both the day and the night?

1. Moon (sometimes)
2. Bus
3. Building
4. Tree

Why do stars appear to twinkle?

1. Because they switch their light on and off.
2. Because their light passes through the Earth's atmosphere.
3. Because they move quickly around the Earth.
4. Because clouds touch them.

What are stars?

1. Objects that reflect sunlight only
2. Huge balls of hot gases that produce their own light and heat
3. Pieces of rock floating in space
4. Clouds in the sky

Which heavenly body shines because it reflects the Sun's light?

1. Sun
2. Moon
3. Star
4. Comet

Which is the main source of light for the Earth?

1. Moon
2. Sun
3. Stars
4. Planets