Space/Solar System 🔭🌌🌠

Question 1

explain why Pluto is no longer considered to be a planet

Answer 1

Because a planet is classified as:

a. Its position in space
b. Its size
c. Cleared it’s orbital path with its gravity.
d. Mostly elliptical orbit
c. Does not cross other planets orbit

Question 2

describe examples of how technological advances have led to discoveries and increased our understanding of the solar system

Answer 2

The invention of radio telescope, spaceflight,

Question 3

compare the planets in the solar system

Answer 3

4 rocky planets closer to the sun (Mercury, Venus, Earth, Mars called Terrestrial Planets meaning ‘like Earth’) and 4 gas giants on the outer edges of the solar system.

Question 4

identify the forces keeping the planets in orbit

Answer 4

Gravity

Question 5

outl ine features of the sun

Answer 5

Yellow-Orange colour, 6000 Kelvin surface temp, the surface is an equalibilim between fusion exploding out and gravity pulling it back in

Question 6

explain the importance of the sun in our solar system

Answer 6

Allows plants to do photosynthesis and makes light and heat

Question 7

distinguish between comets, meteors and meteorites

Answer 7

Comets: body composed of rock, dust and ice. When close to the sun, it has a tail that points away from the sun.
Meteor: the fiery streak of light from a meteoroid that has entered the Earth’s atmosphere from space and has become so hot that it burns if it reaches the earhts surface it becomes a meteorite.

Question 8

outline the ways in which the Earth moves

Answer 8

Moves around the sun in an anti-clockwise direction, tilts on its axis by about 23.5 from 90 and rotates from west to east.

Question 9

explain night and day in terms of Earth’s rotation

Answer 9

As the earth orbits the sun, it spins on its axis with one side facing the sun (day) and one facing away (night) each rotation is 24 hours long

Question 10

explain, in terms of the tilt of Earth’s axis and its revolution around the sun, what causes the season

Answer 10

When the earth tilts on its axis one hemisphere get more controlled and comoact sun rays creating summer and winter for the other

Question 11

describe the surface of the moon

Answer 11

Ruggered and littered with craters. Dark patches of lava plains called Maria

Question 12

identify the phases of the moon and explain how they occur

Answer 12

As the moon orbits the earth sun casts light over pacific areas of the moon, as one side