a person whose job involves travelling and working in a spacecraft
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B
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C
an accident in which a vehicle hits something, for example another vehicle, usually causing damage and often injuring or killing the passengers
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D
an aircraft without a pilot, controlled from the ground, used for taking photographs, dropping bombs, delivering goods, etc.
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E
a regular oval shape, like a circle that has been pressed on two sides
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F
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G
the force that attracts objects in space towards each other, and that on the earth pulls them towards the centre of the planet, so that things fall to the ground when they are dropped
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H
a very light gas that does not burn, often used to fill balloons and to freeze food.
Contiene la
I
a journey made by air, especially in a plane
Contiene la
J
something without arms that can be filled with air, designed to help you float if you fall in water
Contiene la
K
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L
an act of bringing an aircraft or a spacecraft down to the ground after a journey
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M
a piece of rock from outer space that hits the earth’s surface
Contiene la
N
the round object that moves around the earth once every 27½ days and shines at night by light reflected from the sun
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O
a curved path followed by a planet or an object as it moves around another planet, star, moon, etc.
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P
a device that is attached to people or objects to make them fall slowly and safely when they are dropped from an aircraft
Contiene la
Q
to need something; to depend on somebody/something
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R
to show the image of somebody/something on the surface of something such as a mirror, water or glass
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S
the point at which an aircraft’s speed is the same as the speed of sound, causing reduced control, a very loud noise (called a sonic boom)
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T
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U
a single thing, person or group that is complete by itself but can also form part of something larger
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V
that can be seen
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W
the form that some types of energy such as heat, sound, light, etc. take as they move
Contiene la
X
connected with life existing outside the planet Earth
Contiene la
Y
any of the large systems of stars, etc. in outer space
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Z
a thing that you use to fasten clothes, bags, etc. It consists of two rows of metal or plastic teeth that you can pull together to close something or pull apart to open it.
