Science Vocab

Question 1

Orbit

Answer 1

The circular path of an object as it revolves due to gravity.

Question 2

Solar System

Answer 2

The sun and its family of orbiting planets and moons and other objects.

Question 3

Galaxy

Answer 3

Millions and billions of stars held together in a group by their own gravity.

Question 4

Universe

Answer 4

All existing matter and space considered as a whole ; the cosmos. The whole solar system.Including planets and matter

Question 5

Satellite

Answer 5

An object that orbits a more massive object.

Question 6

Impact crater

Answer 6

A bowl-shaped cavity in a planet.A smaller thing hits the planet.

Question 7

Revolution

Answer 7

The motion of one body around another, such as the earth in its orbit around the sun.

Question 8

Season

Answer 8

One of a pattern of temperature changes and other weather trends over the course of a year.

Question 9

Solstice

Answer 9

In an orbit, a position and time during which one hemisphere receives the maximum sunlight.

Question 10

Equinox

Answer 10

In an orbit, a position and time in which sun shines equally on both hemispheres

Question 11

Mare

Answer 11

A large dark plain of solidified lava on the moon.

Question 12

Eclipse

Answer 12

An eclipse is an astronomical phenomenon caused by the revolution of the moon around earth.When the moon is positioned directly between earth and the sun, its shadow falls on earth , producing a solar eclipse.

Question 13

Umbra

Answer 13

The fully shaded inner region of a shadow cast by and an opaque object, especially the area on the earth or moon experiencing the total phase of an eclipse.

Question 14

Penumbra

Answer 14

A partially shaped outer region of the shadow cast by an opaque object

Question 15

Astronomical Unit ( AU )

Answer 15

Average distance from the sun which is 93,000,000 miles

Question 16

Ellipse

Answer 16

A regular oval shape, flat circle.

Question 17

Terrestrial planet

Answer 17

A planet that has a rocky surface

Question 18

Gas giant

Answer 18

A large planet that consists mostly of gases in a dense form.

Question 19

Asteroid

Answer 19

A small rocky body orbiting the sun

Question 20

Comet

Answer 20

A celestial object consisting of a nucleus of ice and dust.

Question 21

Meteor

Answer 21

A brief streak of light produced by a particle entering Earths atmosphere at high speed.

Question 22

Meteorite

Answer 22

A small object from outer space that passes through earths atmosphere and reaches the surfaces

Question 23

Geocentric

Answer 23

Earth centered theory of the solar system.

Question 24

Heliocentric

Answer 24

A sun centered theory of the universe

Question 25

Gravity

Answer 25

The force that objects exert on one another because of their mass.

Question 26

Tide

Answer 26

The rise and fall of the oceans caused by the gravitational pull of the moon and the sun.

Question 27

Waxing

Answer 27

The gradual increase of the illuminated surface of the moon.

Question 28

Wannig

Answer 28

The gradual decrease of the illuminated surface of the moon

Question 29

Gibbous moon

Answer 29

More than a half but less than fully illuminated

Question 30

Crescent moon

Answer 30

The illuminated surface is less than a quarter illuminated

Question 31

Full moon

Answer 31

Entire surface is illuminated

Question 32

New moon

Answer 32

The entire service is not illuminated

Question 33

Quartermoon

Answer 33

Half of the moon is illuminated