Space Exploration Review

As humans travel in space, which gas is provided in the atmosphere of the spacecraft and which gas is removed from the atmosphere of the spacecraft?

• Oxygen is provided. Carbon dioxide is removed.

• Carbon dioxide is provided. Oxygen is removed.

• Carbon dioxide is provided. Nitrogen is removed.

• Oxygen is provided. Nitrogen is removed.

Why is some food dehydrated for astronauts to eat in space?

• to make the food less messy to eat

• to preserve the food for extended flights

• to increase the food's nutritional content

• to keep the food from floating off the plate

Which BEST explains why it is important for a doctor’s office to keep accurate records of the medicines prescribed for their patients?

• to know how many people take medicines

• to keep track of all of the people who are sick

• to keep track of the next scheduled appointments

• to know if there is a risk for harmful side effects

Which of these criteria could NOT be used when considering food and energy for astronauts during manned space flights?

• history of space food

• food crumbs in zero gravity

• rehydration of certain foods

• food storage for long periods

Which of the

following can only be seen with a telescope?

• the moon-like phases of Venus

• the phases of Earth’s moon

• a lunar eclipse

• a solar eclipse

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Scientists MOST likely prefer to use the Hubble Space Telescope instead of a land-based telescope because it provides better accuracy at

• predicting solar eclipses.

• investigating faraway galaxies.

• investigating the size of Venus.

• predicting the phases of the moon.

Which statement explains why the gravity assist concept was useful for spacecraft to successfully travel and return to Earth?

• It gave spacecraft a timed trajectory.

• It ensured spacecraft would return home safely.

• It was helpful in planning spacecraft trajectories.

• It ensured spacecraft would avoid being pulled into the Sun.

Which of these is an unpiloted spacecraft designed to gather information while orbiting planets other than Earth?

• space probe

• space shuttle

• space station

• space telescope

The rockets of the 1960's led to which advancements?

• the exploration of the mountains on Mars

• the discovery of extraterrestrial life forms

• a detailed model of the structure of the Sun

• a close observation of the surface of the Moon

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What scientific observation did Edwin Hubble use to determine distances between galaxies?

• As the light source passes Earth, the wavelength increases as the frequency increases.

• As the light source moves toward Earth, the wavelength decreases as the frequency increases.

• As the light source moves away from Earth, the wavelength increases as the frequency decreases.

• As the light source affects the gravity of Earth, the wavelength decreases as the frequency decreases.

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