Ask and answer questions on the video.

1. 5 Ways Space Travel Affects the Human Body – The Countdown
https://www.youtube.com/watch?v=HSrVO5C9kwQ
Ask questions:
1.- The human body evolved to function on earth.
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2.- The human body evolved to deal with Earth’s gravity.
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3.- When humans venture into weightlessness of space they start losing muscle mass
and bone density.
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4.- Astronaut Richard Hieb became too tall to fly in space in 1994 while he was flying
in space.
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5.- When he boarded the space shuttle Columbia on earth he was an inch shorter
than NASA’s maximum height limit of six foot four inches.
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6.- Once the shuttle went into orbit he started growing.
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7.- On earth gravity presses down on the body.
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8.- In microgravity the pressure on the body is removed.
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9.- Spines stretch out and increase an astronaut’s height by as much as two inches.
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10.- This height boost can be a problem.
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11.- This height boost makes him break NASA’s height limit.
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2. 12.- This height boost causes back pain.
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Answer these questions:
1.- What does Earth’s gravity do with fluids?
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2.- What would happen if Earth’s gravity didn’t exist?
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3.- What happens when there is no Earth’s gravity?
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4.- Why do astronauts report a weaker sense of taste in space?
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5.- What can’t you do properly when you have a stuffy nose?
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6.- Why is a stuffy nose an advantage when travelling in a spacecraft?
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7.- What do astronauts do to make up for food blandness in space?
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8.- What happens to the heart in microgravity? Why is this so?
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9.- When could the heart function less efficiently?
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10.- What happens to the astronauts’ eyes during their time in microgravity?
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11.- How long could their eye damage last?
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12.- What eye conditions are produced by the upward flow of fluids?
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3. Match column A with column B:
1.- the inner ear a.- of where their arms and legs are
located.
2.-astronauts feel disoriented b.- how to stand up, balance and walk in
the proper direction.
3.-they orient themselves c.- helps you keep your balance
4.-they can lose track d.- to work as hard as on earth.
5.- they must readapt e.- to measure their hearts before,
during and after a mission on the I.S.S.
6.- they have to relearn f.- with visual clues alone
7.- in space the heart doesn’t have g.-to life gravity again.
8.- they used ultrasound h.-when they first leave gravity behind.