Science space quiz

Match the following

• Celestial object

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

• Universe

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

• Solar System

• the Sun and all the objects that travel around it

• Satellite

• any object that exists in space

• Orbit

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

Match the following

• Astronomy

• 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

• Moon

• is the scientific study of what is beyond Earth

• Galaxy

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

• 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

• Terrestrial planets

• Only visible because they reflect light from the sun

• Gas giants

• Are luminous , means produce light

• Planets and the moon

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

• Solar system

• 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

• Appear to twinkle and appear white

• very far from earth

• non-luminous

• Is a natural type of satellite

• appears as a hazy band of white light

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

• Luminous

• contains 200 billion stars

• don't twinkle and can be coloured

• always very hot

• is actually 4 times smaller than earth

• ours is called the milky way

• relatively close to earth

• very large, some are bigger than the sun

• large collections of stars, dust, gas and planets

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

• Occur along the sun's pathway

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

• Found everywhere in the sky

Match the following

• Solstice

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

• Gravitational Force

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

• Eclipses

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

• 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 

Match the following

• Revolution

• 24hrs or 1 day

• Orbital radius

• This means to spin.

• Rotation

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

• Earth's revolution

• 365 days or 1 year

• Earth's rotation

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

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):