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Science L4 Term 3 Review
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What is a light year? The time it takes for light to travel in a one year. True or false
True
What is refraction? When light bounces off an object OR when light is bent
Light is bent
If a telescope uses only mirros, what is it called? Reflector, refractor or compound?
Reflector
If a telescope uses only lenses, what is it called? Reflector, refractor or compound?
Refractor
If a telescope uses lenses and mirrors , what is it called? Reflector, refractor or compound?
Compound
What can a telescope do for man?
See distant objects, into space
What are satellites used for?
Communication, GPS, photos of earth, weather, etc
How does a spacecraft get to the space station?
A rocket propels it to out of the atmosphere
What work is being done on the space stations?
Experiments, effect of space on man
Where do we find new stars being born? In a nebula OR in the center of a galaxy?
Nebula
What results from a star exploding? A supernova OR a nebula
nebula
What do we call 2 stars orbiting around one another? Duplex stars OR Binary stars
Binary stars
What is the outer edge of the blackhole called? The event horizon OR the matter horizon
Event horizon
What is the area in space called where gravity is at its strongest?
Blackhole
Where is the Oort cloud in our solar system? In the center of our solar system OR at the outer edge of our solar system
At the edge
Where do comets come from? The Kuiper belt or from around Neptune?
Kuiper Belt
Name the 2 main categories of the planets. The words start with "T" and "J"
Terrestrial and Jovian planets
What is similar between earth and Venus?
Similar in size and density
Which eclipse is shown in the picture? Solar OR lunar eclipse?
Solar eclipse
What are the 2 main elements of the sun? Hydrogen and helium OR hydrogen and carbon
Hydrogen and helium
The theory is that the Big Bang happened. What was the first particle formed? Atoms OR molecules?
Atoms
Does the universe evolve and change OR just expand over time?
Expand