Bio Grade 8 Question Preview (ID: 42756)


Bio Grade 8. TEACHERS: click here for quick copy question ID numbers.

What does the computer decode the data into - Radio telescopes
a) It produces visible image
b) It can be used in any conditions
c) Square kilometer Array (SKA)
d) All

Radio telescopes - consists of
a) Sends a frequency
b) 1000's of dishes which work together as one gigantic telescope
c) All
d) None

Radio telescopes - convert to audio
a) It takes 2 million years to hear it
b) Can't be converted
c) Stays the same
d) None

Radio telescopes - Fibre cable
a) Will rap around the world twice
b) Can't be loaded
c) Sends singles
d) None

The sun creates
a) Energy which is light photosynthesis
b) Heat drives several biological processes
c) All
d) None

How does the sun generate energy
a) Nuclear fusion
b) Via nuclear fusion
c) All
d) None

What are sun spots
a) Dark spots on the sun's surface
b) That are cooler than the rest of the sun
c) All
d) None

Solar prominance
a) A massive release of energy
b) From the surface of the sun which
c) Arcs and returns to the sun's surface
d) All

What is Solar flare
a) Massive release of energy that escapes
b) The sun's gravitational pull
c) and escapes into space
d) All

Objects that orbit the Sun
a) Planets, Planetry moons
b) Outer dwarf planets
c) Comets, Astroids
d) All

What is needed for a celestial body to be considered a planet
a) Orbit the sun
b) needs sufficient gravity to pull itself into a spehicell shape
c) It must have clear space
d) All

Inner planets
a) Four planets closer to the sun
b) All made of rock, known as rocky giants and considered terrestrial planets
c) In order mercury, venus, earth, mars
d) All

Outer Planets
a) Four planets FURTHEST from the sun
b) Made of gas called gas giants
c) in order jupiter, saturn, uranus and neptune
d) All

Outer Planets
a) Saturn and Jupiter consist of helium and hydrogen
b) Uranus and Neptune are made of water pneumonia
c) And Metade
d) All

Dwarf planets
a) Space bodies that are big enough
b) To have sufficient gravity to pull the mass
c) Not big enough to clear the space
d) All

Astroids
a) Large rocks in outer space in the astroid belt between mars and Jupiter
b) They are big , not considered planets
c) But CAN'T pull to space
d) All

Comets
a) Made of ice and dust
b) Originated from oort cloud and camper belt close to Neptune
c) Edge of the solar system
d) All

Conduct an investigation
a) Hypothesis
b) Aim
c) Variable and Fixed controlled variable
d) All

Definition of Hypothesis
a) The lightly answer to the observed question
b) Expressed as statement
c) Must include all variables and be testable
d) All

Definition of Aim
a) Statement of what the investigation is setting out to acheive
b) Often starts with statement TO SEE
c) Investigate or TO TEST
d) All

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