Planet Hunters

What could be another title for this reading?

• a. How Exoplanets Were First Discovered

• b. Is There Intelligent Life on Other Planets?

• C. The Search for Earth-like Planets Around Other Stars

• d. The Story of"Hot Saturn,""Hot Jupiter,"and "uper Earth"

2.When this article was written, how many exoplanets had been discovered?

• 260

• about 390

• nearly 4000

• billions

Look at the infographic on page 206.Which of these statements is true?

• a. Mercury orbits at a great distance from is sun.

• b. Mercury is larger than Earth.

• C. Any water found on Venus would be frozen.

• d. Venus and Earth are similar in size.

4. The author indicates in paragraph K that observing and analyzing light from an exoplanet ________.

• a. will probably show signs of life

• b. will be difficut but not impossible

• c. has been accomplished several times

• d. will require technology not presenty avalable

5. The author implis that on some exoplanets, ________.

• a. life may have evolved without chlorophyllbearing plants

• b.chlorophyl-bearing plants would not produce a "red edge"

• C. atmospheric methane and oxygen may produce a "red edge"

• d. life will be simila to that on Earth if it originated at the same time

A year on "hot Saturn" lasts lessthan thre days (paragraph B)

• Fact

• Speculation

Some planets have fallen into their suns. (paragraph B)

• Fact

• Speculation

Astronomers have used telescopes to detect more than half of the confirmed exoplanets.(paragraph D)

• Fact

• Speculation

The best place to look for Earth-ike planets is around dwarf stars (paragraph H)

• Fact

• Speculation

Life thrived on arth for biliosose fars fre land plans spared. (paragraph L)

• Fact

• Speculation