The Moon

Question 1

How long is the lunar cycle?

Answer 1

27 days to orbit the earth

Question 2

Phases of the moon

Answer 2

-New moon
-Waxing crescent
-First quarter half moon
-Waxing gibbous
-Full moon
-Waning gibbous
-Last quarter half moon
-Waning crescent

Question 3

What is a lunar eclipse?

Answer 3

When the earth casts a shadow across the entire full moon

Question 4

What is a solar eclipse?

Answer 4

When the moon passes directly in front of the sun

Question 5

What is the umbra?

Answer 5

Area of shadow caused by earth blocking all of the light from the sun

Question 6

What is the penumbra?

Answer 6

Area of shadow caused by the earth blocking some of the light from the sun

Question 7

How are seasons caused?

Answer 7

Seasons are caused by the earth’s tilt on its own axis as it rotates around the son in its orbit.

Question 8

How does the Earth’s tilt affect the earth?

Answer 8

Earth’s tilt is rotating at a 90 degree angle

-Changes length of day
-Changes the angle at which sunlight hits the ground throughout the year
-Determines seasons

Question 9

What are the benefits of spaceflight

Answer 9

-Extending our knowledge of stars, galaxies and the universe

-Water purification methods developed to help humans live off earth for long periods of time. Used for emergency situations on earth

-Development of new technology, e.g. solar panels

Question 10

Hazards of spaceflight

Answer 10

-Rocket lift-off is dangerous

-Expensive

-Micro-meteorites and space debris scatter everywhere throughout space at high speeds. They can cause significant damage to anything it collides with

-Negative affects on the health of the astronaut, e.g. Constant noise and light on the spacecraft can affect sleeping patterns