Life Without Gravity

According to "Life Without Gravity", why does the author disagree with the statement that "everything is fun, nothing is hard" in space?

• because weightlessness has unpleasant effects on the body

• because astronauts have to memorize a great deal of information

• because learning to fly the space shuttle requires hours of training

• because life on a space station can be extremely lonely

Why does the "space tourist" Dennis Tito say, "Living in space is like...living in a different world"?

• Life without gravity is strange and hard to get used to.

• Astronauts travel to completely different worlds.

• It is extremely difficult to eat in a weightless environment.

• Astronauts are so far from their lives and families on Earth.

According to "Life Without Gravity", what effect does weightlessness have on blood?

• It causes blood to flow more slowly.

• It causes blood to flow to the head.

• It causes blood to thin out.

• It causes blood to form clots.

"Life Without Gravity" suggests that astronauts' muscles become weak because

• blood stops flowing to the muscles.

• it is difficult to eat nutritious meals.

• the disks in the spine relax, causing the astronauts to "grow" taller.

• the muscles do not have the opportunity to push and pull on the bones.

Which detail supports the main idea that microgravity weakens astronauts' bones?

• Astronauts grow one to three inches taller.

• Astronauts' legs become think and sticklike.

• Astronauts lose 10 percent of their bone tissue after several months.

• Astronauts get used to living without gravity after about one week.

According to "Life Without Gravity", weightlessness becomes "fun"

• when you eat spicy food that tastes bland.

• when you exercise to maintain your strength.

• when you heart and spine adjust.

• when food gets splattered everywhere.

According to "Life Without Gravity", what is the cause of astronauts nausea?

• too much blood flowing to the head

• the weakening of the muscles

• the lengthening of the spine

• an upset in the sense of balance

According to "Life Without Gravity", if you point your head to the left, you will

• turn upside-down.

• feel intense nausea.

• move to the right.

• move to the left.

According to "Life Without Gravity", when milk is poured in a weightless environment

• it covers everything with tiny globules.

• it remains in the container and hardens.

• it forms big floating balls.

• it separates from the cream.

The astronaut Jerry Linenger says that his body "felt like a 500-pound barbell" because

• he had gained a great deal of weight.

• he was weak and unused to gravity.

• he had felt nausea for a long time.

• he had not been able to eat properly.