What I Know
Activity 1 - A. Choose the letter of the best answer. Write your answer on a
separate sheet.
1. It is a piece of space rock burning up in Earth's atmosphere
a. comet
b. meteor
c. asteroid
d. dwarf planet
2. What happens to a comet as it gets close to the sun?
a. it explodes
c. it melts and disappears
b. it burns up
d. it forms long tails made of gas and dust
3. Large balls of ice that contains elements like sodium or argon.
a comets b. meteors
c. asteroids
d. dwarf planet
4. What are the parts of a comet?
a. head, body, and tail
c. nucleus, coma, and tail
b. nucleus, body, and tail
d. nucleus, protons, and electrons
5. What is the asteroid belt?
2. A belt of rocks across a planet c. An area where comets come from
b. A belt of rocks crossing the sun d. An area where most asteroids are found
6. What is the space rock fregment that survives and makes it to the ground?
a. Meteoroid
C. Meteor
b. Meteorite
d. Meteor shower
7. A meteoroid uaially
when it enters Earth's atmosphere.
a. burns up
b. disappear
b. solidify
d. none of these
8. It is the most famous comet of the 20th century,
a. Hale Bopp
b. Comet Wild 2
c. Comet Borrelly
d. Halley's Comet
9. These objects that orbit the sun are nicknamed "dirty snowballs".
a. comets
c. asteroids
b. meteors
d. meteoroids
10. When objects strike the surface of a planet or moon, they leave a deep
impression on the surface called a
a. canyon
c. pothole
b. crater
d. plateau​