1. What is the de nition of orbit?

a. the spinning of the earth on its axis

b. when the lit part of the moon increases

c. all of the planets, moon, and other space objects going around the sun

d. the imaginary line that goes through the north and south poles that the earth spins on

2. What is the center of our solar system?

a. Moon b. earth

c. sun d. Jupiter

3. Which one takes 24 hours?

a. rotation b. revolution

4. What causes day and night?

a. rotation b. revolution

5. What is the sun?

a. a star b. a comet

c. a planet d. an asteroid

6. This is the rst planet from the Sun; it is very hot in the day and very cold in the
night.

a. Mercury b. Neptune

c. Earth d. Jupiter

7. What are large chunks of rocks and metal in space?

a. Earth b. comet

c. asteroids d. gibbous

8. The fourth planet from the Sun; also known as the "red planet."

a. Neptune b. Mercury

c. Earth d. Mars
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9. The sixth planet from the Sun; known for its large rings.

a. Saturn b. Mercury

c. Earth d. Mars

10. How many moons does Earth have?

a. 1 b. 2

c. 3 d. 4

11. The biggest planet is...

a. JUPITER b. EARTH

c. MARS d. VENUS

12. How many planets does the solar system have?

a. 1 b. 9

c. 5 d. 8

13. Which is the largest object in our solar system?

a. Sun b. Jupiter

c. Earth d. Pluto

14. Which is the second closest planet to the sun?

a. Earth b. Saturn

c. Venus d. Mercury

15. Which planet is third from the sun?

a. Mars b. Pluto

c. Venus d. Earth

16. Which is the fourth planet from the sun?

a. Mars b. Saturn

c. Earth d. Jupiter
17. Which is the sixth planet from the sun?

a. Earth b. Uranus

c. Saturn d. Neptune

18. Which planet is seventh from the sun?

a. Saturn b. Earth

c. Venus d. Uranus

19. Which planet is farthest from the sun?

a. Neptune b. Pluto

c. Earth d. Uranus

20. The star at the center of our solar system

a. equator b. sun

c. planet d. constellation

21. To spin on an axis

a. orbit b. revolve

c. rotate d. axis

22. A star and all the planets and other objects that revolve around it

a. galaxy b. universe

c. constellation d. solar system

23. An imaginary line that passes through Earth's center and its North and South
poles

a. axis b. equator

24. The path one body takes in space as it revolves around another

a. universe b. orbit

c. refraction d. moon
25. Why are the outer planets cold and dark?

a. closeness to the Sun

b. far from the Sun

c. close to each other

d. far from the Asteroid Belt

26. How does the Sun appear to move in the sky?

a. rises in the west and sets in the east

b. rises in the east and sets in the west

c. rises in the south and sets in the north

d. rises in the north and sets in the south

27. We live in a spiral galaxy known as the

a. Cosmos b. Sombrero

c. Anendo d. Milky Way

28. As distance between two objects increase the pull of gravity

a. Increases b. Decreases

c. Stays the same

29. The outer planets all have (choose all the answers that are true)

a. rings

b. solid surfaces

c. Helium and Hydrogen

d. longer orbits around the sun than inner planets

30. The revolution of Earth causes our seasons.

True False

31. Day & night are caused by the ______________ of Earth on its axis.

a. revolution b. orbit

c. Rotation d. tilt of the axis

32. In which direction does Earth rotate?

a. from north to south

b. from south to north

c. from west to east

d. from east to west

33. Which is the correct order of our planets?

a. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

b. Mars, Venus, Earth, Mercury, Jupiter, Saturn, Uranus, Neptune

c. Neptune, Uranus, Saturn, Jupiter, Mars, Earth, Venus, Mercury

d. Mercury, Venus, Earth, Mars, Neptune, Saturn, Jupiter, Uranus

34. What does the rotation of the Earth cause us to experience?

a. seasons b. year

c. day & night d. eclipse

35. One rotation of Earth is equal to

a. a day b. a year

36. What causes day and night?

a. Earth orbiting the sun

b. Earth rotating on its axis

c. Earth rotation around the moon

d. The sun going up and down

37. When is it day?

a. When our part of the Earth faces away from the sun.

b. When our part of Earth is under the sun.

c. When our part of Earth is close to the sun.

d. When our part of the Earth faces the sun.

38. The sun appears to rise in the east and set in the west because.....

a. Earth rotates b. the sun rotates

c. the sun does not rotate d. the earth does not rotate

39. Which event it caused by Earth rotating on its axis?

a. the wind blows b. night becomes day

c. the seasons change d. it starts to rain

40. The Earth's ________ causes day and night.

a. rotation b. revolution

c. orbit d. axis

41. The Earth's ___________ causes our year and seasons.

a. rotation b. revolution

c. orbit d. axis

42. The moon ____________ around Earth

a. rotates b. revolves

c. axis d. smiles
Unit 5 Questions

1. What is a ow of charged particles called?

a. Electric current b. Electric circuit

c. Electrons d. Electric switch

2. A path that electricity can ow through is called

a. An electric current b. An electric circuit

c. A wire d. A load

3. An appliance that uses electricity and produces heat and light is:

a. An iron b. A toaster
c. A refrigerator d. A washing machine

4. A circuit in which a bulb lights up must be:

a. Open b. Closed

c. Have a switch d. Open or closed

5. A circuit can be opened or closed using a

a. Load b. Connector

c. Switch d. Wire

6. Electricity can be dangerous because

a. It is powerful

b. It can make you sick

c. It can give you an electric shock

d. It is hot

7. This circuit 8. In this circuit

a. Has one break a. The bulb will light up

b. Has many breaks b. The bulb will not light up

c. Has no breaks
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9. Which of the following are dangers associated with electricity?

a. Wet hands b. Uncovered wires

c. Broken plugs d. All of the above

10. Which of these materials is a good conductor of electricity?

a. Rubber b. Metal

c. Newspaper d. Glass

11. Which of the following items would conduct electricity?

a. Aluminum ladder

b. Metal screwdriver

c. Wooden baseball bat

d. Rubber ip ops

12. A science class was completing an experiment on electrical circuits. Why did the
bulb go out each time the switch was opened?

a. Opening the switch broke the circuit

b. The battery was probably going at

c. There was too much electricity owing

d. Opening the switch closed the circuit

13. Many electrical wires are wrapped with a plastic coating because plastic is -

a. More dense than copper

b. Able to keep its shape

c. Less expensive than steel

d. A good insulator

14. Material that electricity can easily ow through

a. Insulators b. Rubber

c. Conductor d. Wood
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15. A device for opening or closing the ow in a circuit is _______.

a. an insulator

b. a battery charger

c. a switch

16. What is the energy source for a circuit?

a. Light bulb b. Battery

c. Wire d. Switch

17. What is it called when a circuit is complete?

a. Closed circuit b. Light bulb circuit

c. Open circuit d. Series circuit

18. In a series circuit what happens when you add another bulb?

a. The bulbs gets brighter

b. The bulbs gets dimmer

c. Nothing changes

19. A/an _________________ is a material that will not allow electricity to ow through
it.

a. insulator b. conductor

20. Two batteries in a circuit make the lights in the circuit brighter than one battery.

a. True b. False

21 . An electric circuit is shown. Which object at X will complete

the circuit?

a. A metal paper clip b. A plastic bottle

c. A rubber band d. A wooden stick

22. A complete electrical path works with only a wire and a bulb.

a. True

b. False
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 23. To make a circuit complete you must have a-

a. complete path

b. switch

c. bulb

24. When the switch is closed the light-

a. turns on

b. stays o

c. burns out

25. If the lights are o , the circuit is-

a. open b. closed

26. In a series circuit, if one bulb goes out-

a. they all go out

b. the rest stay lit

c. half stay lit and half go out

27. Two types of circuits-

a. parallel and magnetic

b. electromagnetic and series

c. series and parallel

28. Silver is a _____?

a. insulator b. conductor

29. Water is a______?

a. conductor b. insulator
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30. The circuit pictured does not work. Which procedure would most likely allow the
bulbs to light?

a. Open the switch and then connect the two wires that are attached to the wood block

b. Switch the positions of the two wires that are connected to the battery and then open
the switch

c. Move the switch closer in the circuit to the battery

d. Connect the two wires that are attached to the wood block

31. What is wrong with this circuit?

a. There is no light bulb

b. The wire is cut

c. There is no battery

d. The wire is not connected to the battery

32. Why do electricians wear gloves
made of rubber?

a. It is soft. b. It is waterproof.

c. It is an insulator. d. It is inexpensive.

33. Why is a switch used in a circuit?

a. To complete or break a circuit b. To save energy

c. To prevent electric shocks d. To make the bulb glow easily

 34. The diagram shows a bulb and a wire attached to a
battery. Why would this bulb be lit?

a. The battery is out of energy

b. The bulb is out of energy

c. The circuit is incomplete

d. The circuit is complete

35. A material in which electrons are able to move easily

a. Circuit b. Insulator

c. Resistance d. Conductor

36. A material in which electrons are NOT able to move easily

a. Circuit b. Insulator

c. Resistance d. Conductor

37. A material in which electrons are NOT able to move easily

a. Circuit b. Insulator

c. Resistance d. Conductor

38. Objects that allow thermal and electrical energy to pass through easily.

a. Conductors b. Insulators

c. Magnets d. Flows

39. Observe the diagram. How many bulbs would turn

on if a student closed switch C and switch D?

a. 0 bulbs b. 1 bulb

c. 2 bulbs d. 3 bulbs
40. This is a

a. broken circuit b. closed circuit

c. complete circuit or closed circuit

d. open or incomplete circuit

41. What would best complete this circuit?

a. A wire b. A switch

c. A battery d. A light bulb

43. Is all in space and time, including planets, stars, galaxies, and all other forms of
matter and energy.

a. universe b. solar system

c. star d. moon

44. Mercury, Venus, Earth, Mars are...

a. outer planets b. inner planets

45. The biggest belt of these rocks is between Mars and Jupiter. These are chunks
of rocks..

a. sun b. asteroids

c. planets d. solar system

46. Is the only planet known to support life and to have liquid water at the surface

a. Mars b. Earth

c. Mercury d. Jupiter

47. Is the smallest and fastest planet is the closest planet to the Sun

a. Saturn b. Jupiter

c. Mars d. Mercury

48. Is the coldest planet. It has numerous moons, scientists have also con rmed 27
moons orbiting around it

a. Saturn b. Uranus

c. Mars d. Earth

49. Is a huge system of stars, gas, dust, and other objects that are held together by
a pulling force called gravity.

a. Stars b. Moon

c. Galaxy d. Planets

50. The solar system itself is part of a galaxy called the....

a. Milky milk b. Milky Way

c. The belt d. None of above

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51. What attracts a body toward any other object in space

a. the sun b. satellites

c. gravity d. astroid belt

52. Which of the following is NOT a reason why Earth is the only planet with life as
we know it?

a. It’s atmosphere b. It has water

c. It’s distance from the sun d. It’s moon