BK2 Unit 1 Ch.1, 2

Which activity is more suitable to be done during the day?

• Watching fireworks

• Stargazing

• Picking seashells

• Catching fireflies

Which of the following does NOT appear at night?

• The Sun

• The Moon

• Stars

• Star shower

What is the position of the Sun at noon?

• In the east

• In the middle of the sky

• In the west

• In the south

Which of the following about the Sun is NOT correct?

• The Sun forms shadows.

• The Earth moves around the Sun.

• Our skin will easily get burned when exposed to the Sun for a long time.

• Sunlight is not useful to us.

Which of these are uses of light? (There can be more than one answer.)

• Attracting people’s attention

• Allowing us to see things

• Making things larger

• Washing clothes

When can we see the full moon?

• On the 4th day of a lunar month

• On the 8th day of a lunar month

• On the 15th day of a lunar month

• On the 22th day of a lunar month

Which of the following about the Moon is NOT correct?

• Sometimes the Moon looks round; sometimes it looks like a banana.

• We can see the Moon clearly on cloudy nights.

• We can see the Moon because the Sun shines on it.

• The Moon is the biggest on the 15th of a lunar month.

Which of the following is correct?

• The Moon is not in the sky in the daytime.

• The Moon gives off light.

• The Moon and stars are in the sky in the daytime.

• Stars do not give off light in the daytime.

Which of these sentences are correct? (There can be more than one answer.)

• The position of a shadow changes according to the position of the sun.

• The size of a shadow changes according to the position of the sun.

• A sundial is a tool that people nowadays use to measure time.

• We can use a sundial to tell the time in any weather.

When does the Sun rise?

• In the morning

• At noon

• In the evening

• At night