Term 4

Question 0

Astronomer

Answer 0

An expert in the scientific observation of celestial bodies

Question 1

Asteroid

Answer 1

A small body of rock floating in space between 775km and 1.6km in diameter and orbiting the sun, mostly found between Mars and Jupiter

Question 2

Axle

Answer 2

A shaft-like piece of machinery by means of which a pair of wheels rotates

Question 3

Celestial

Answer 3

Pertaining to the sky or visible heaven

Question 5

Chassis

Answer 5

The frame on which a body is supported

Question 6

Crater

Answer 6

the round hole at the top of a volcano, or a hole similar to this

Question 7

Crescent moon

Answer 7

the curved sickle shape of the waxing or waning moon

Question 8

Cylinder

Answer 8

a solid or hollow tube with long straight sides and two circular ends the same size

Question 9

Dwarf planet

Answer 9

Celestial bodies resembling small planets but lacking certain technical criteria that are required for them to be classed as such

Question 10

Elliptical

Answer 10

a flattened circular path taken by a celestial body

Question 11

Energy transformation

Answer 11

the change of energy from one state to another

Question 12

Equator

Answer 12

an imaginary line cutting the Earth into two halves and which is equal in distance from both the North and South Poles

Question 13

Equinox

Answer 13

the time when the sun crosses the Earth’s equator, making night and day of approximately equal length all over the Earth, occurring around 21 March and 22 September

Question 14

Full moon

Answer 14

the Moon when it is shaped like a complete disc or a time when it is

Question 15

Gibbous moon

Answer 15

having the illuminated part greater than a semicircle and less then a circle

Question 16

Kinetic energy

Answer 16

the energy of a body or system with respect to the motion of the body or of the particles of the system

Question 17

Meteorite

Answer 17

a mass of stone or metal that has reached the earth from outer space

Question 18

New moon

Answer 18

the Moon when it is shaped like a crescent or a time when it is shaped like this

Question 19

Photo-voltaic

Answer 19

the process by which light or electromagnetic radiation comes into contact with two different materials and in turn produces an electromotive force

Question 20

Potential energy

Answer 20

the energy generated in an electrical cell

Question 21

Radiate

Answer 21

to produce heat and / or light

Question 22

Revolution

Answer 22

one complete circular movement of something for example a wheel

Question 23

Robotic Rover

Answer 23

A mechanical vehicle used to explore the surface of a celestial body. Can either be remote-controlled or programmed to fulfill certain functions

Question 24

Rotation

Answer 24

a complete circular movement around a fixed point

Question 25

Satellites

Answer 25

natural or man-made objects moving round a larger object in space

Question 26

Seasons

Answer 26

Four periods of the year, spring summer autumn and winter

Question 27

Solar panels

Answer 27

the plates used to absorb energy from the sun

Question 28

Solar system

Answer 28

the sun, the group of planets, asteroids and comets which move around it

Question 29

Solstice

Answer 29

either of the two times during the year at which the sun is at its furthers point from the equator

Question 30

Star

Answer 30

a very large ball of burning as in space which is usually seen from Earth as a point of light in the sky at night

Question 31

Telescope

Answer 31

an optical instrument for making distant objects appear larger and therefore nearer

Question 32

Terrestrial planet

Answer 32

planets with similar characteristics to that of Earth

Question 33

Universe

Answer 33

everything that exists especially all physical matter including all the stars, planets, galaxies etc

Question 34

Wanes

Answer 34

the Moon wanes when it gradually appears less and less round, after the full moon

Question 35

Wax

Answer 35

when the Moon waxes it gradually appears larger and rounder each day