Science space quiz

Match the following

• Orbit

• everything that exists, including all energy, matter, and space

• Celestial object

• the closed path of a celestial object or satellite as it travels around another celestial object

• Satellite

• a celestial object that travels around a planet or dwarf planet

• Solar System

• any object that exists in space

• Universe

• the Sun and all the objects that travel around it

Match the following

• Astronomy

• a massive collection of gases, held together by its own gravity and emitting huge amounts of energy

• Moon

• a large, round celestial object that travels around a star

• planet

• a huge, rotating collection of gas, dust, and billions of stars, planets, and other celestial objects

• Galaxy

• is the scientific study of what is beyond Earth

• Star

• is a type of satellite: a celestial object that travels around a planet or dwarf planet in a closed path.

Match the following

• Stars

• These planets have hard and rocky surfaces

• Solar system

• Only visible because they reflect light from the sun

• Gas giants

•  is the sun and all of the planets that orbit the sun.

• Terrestrial planets

• Are luminous , means produce light

• Planets and the moon

• These planets are composed of mostly gases and liquids

Write the planets in order from closest to the sun to farthest away

Answer explanation

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune

Write 3 facts about Earth

Answer explanation

#1: earth is the 3rd planet from the sun

#2: 5th largest planet in the solar system

#3: terrestrial planet composed of mostly rock

#4: Earth is in constant motion and orbits the sun

Important facts! Sort the facts into their proper category

Groups:

(a) Stars

,

(b) Planets

,

(c) Moon

,

(d) Galaxies

• non-luminous

• always very hot

• relatively close to earth

• very large, some are bigger than the sun

• Found everywhere in the sky

• large collections of stars, dust, gas and planets

• ours is called the milky way

• appears as a hazy band of white light

• appears big and bright due to its proximity (closeness) to earth

• Is a natural type of satellite

• Appear to twinkle and appear white

• contains 200 billion stars

• non-luminous but we can see it because it reflects light from the sun

• Luminous

• is actually 4 times smaller than earth

• very far from earth

• don't twinkle and can be coloured

• Occur along the sun's pathway

• can be bigger than earth but not bigger than the sun

Match the following

• Precession

• an astronomical event that occurs two times each year, when the tilt of Earth’s axis is most inclined toward or away from the Sun, causing the position of the Sun in the sky to appear to reach its northernmost or southernmost extreme 

• Solstice

• the force of attraction between all masses in the Universe. The greater the mass of an object, the stronger its gravitational force

• Eclipses

• the time of year when the hours of daylight equal the hours of darkness

• Gravitational Force

• the changing direction of Earth’s axis. Similar to a spinning top

Match the following

• Earth's revolution

• the average distance between an object in the Solar System and the Sun

• Rotation

• 24hrs or 1 day

• Orbital radius

• This means to spin.

• Earth's rotation

• 365 days or 1 year

• Revolution

• This means to travel all the way around another object.

The earth is closest to the sun around (hint: what month and day):

The earth is farthest to the sun around (hint: what month and day):