1) What kind of eclipse may occur when Earth comes between the Sun and the Moon? a) total eclipse b) lunar eclipse c) solar eclipse d) partial eclipse 2) Why is the Moon called Earth's satellite? a) it travels around the Sun b) it has its own satellite c) it travels around Earth d) it is a heavenly body 3) What kind of eclipse may occur when the Moon passes between Earth and the Sun ? a) penumbral eclipse b) lunar eclipse c) solar eclipse d) total eclipse 4) Which is true about the Moon? a) it casts its own light on Earth b) it reflects light from the Sun c) ir reflects light from the other planets in the solar system d) it reflects light from comets and asteriods 5) When does and eclipse occur? a) when the moon, sun and earth form a straight line b) when the sun, moon, and earth form a right angle c) when the sun and earth revolve around the moon's orbit d) when the sun, moon and earth form a curved line 6) What are stars? a) they are big chunks of rocks b) they are hot balls of gases c) they are dust particles in space d) they are pieces of ice in the solar system 7) Which of the following stars is nearest Earth? a) sirius b) sun c) polaris d) rigel 8) Which term refers to the brightness of a star as seen from Earth? a) absolute magnitude b) apparent magnitude c) luminosity d) distance 9) to what constellation does Betelgeuse belong? a) Auriga b) Gemini c) Orion d) Taurus 10) What constellation is known as the great hunter? a) Bootes b) Auriga c) Orion d) Scorpius

Science 5

由
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?