7.9b

How do astronauts counteract the effects of microgravity on their bones while they are in space?

• monitor sensors outside the space station

• consume twice as many calories as normal

• use exercise equipment on the space station

• breathe at a faster rate than normal

Tags

NGSS.MS-LS1-5

Spacesuits have layers that have high capacity for thermal insulation in order to -

• prevent the spread of bacteria that thrive in space

• regulate body temperature in the extremes of space

• allow communication with the space station

• prevent the astronaut from sweating inside the suit

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

The protective gear that protects astronauts from the cold, airless environment of space.

• space station

• space suit

• accommodations

• instruments

Tags

NGSS.MS-PS3-3

An activity in which an astronaut moves around and does work outside a spacecraft while in space.

• microgravity

• vacuum

• space suit

• space walk

List the steps of the scientific method

d

e

f

c

b

a

Form a hypothesis

Conduct experiment

Communicate results

Ask a question

Analyze results

Draw conclusions

The condition in which people or objects appear to be weightless.

• gravity

• space walk

• mass

• microgravity

Why do astronauts often begin to have blurred vision while in space?

• swelling of the optic nerve

• space dust

• flattening of the eyeball

In space, what happens to an astronaut’s heart?

• it slows down

• nothing, it stays the same

• it swells with fluid before shrinking

• it speeds up

Tags

NGSS.HS-LS1-3

Astronauts in orbit experience what?

• regular gravity

• microgravity

• zero gravity

Tags

NGSS.MS-PS2-4

What part of an astronaut’s body gets weaker in space?

• brains

• muscles

• hands

• legs