Download Physical Science Unit Test

Physical Science Unit Test
Name: __________________________________
Date: _________________________
Directions: Match the words in the word bank with the correct definition.
1. __________________ The three forms that matter usually takes: solid, liquid, and gas.
2. __________________ A single particle of matter made up of two or more atoms joined together.
3. __________________ Anything that has mass and take up space.
4. __________________ The amount of matter in an object.
5. __________________ The smallest particle of matter.
6. __________________ A change in matter that produces new kinds of matter.
7. __________________ A change in the size, shape, or state of matter that does not change it into a new kind
of matter.
8. __________________ Material that an electrical charge can move through easily.
9. __________________ A continuous flow of electric charges.
10. ___________________ A strong temporary magnet that uses electricity to produce magnetism.
11. __________________ Material that electric charges do not move through easily.
12. __________________ An object that attracts certain materials, mainly iron.
13. __________________ The two areas on a magnet with the greatest magnetic force.
14. __________________ A circuit that has more than one pathway
15. __________________ An electric charge that builds up on a material like a balloon.
16. __________________ A circuit with one single pathway
Directions: Circle the correct answer
17. The molecules in a gas
A. are packed close together
B. stay close together
C. do not stay close together
D. form a regular pattern
18. A scientist has a sheet of paper. After an experiment, the paper has turned to ash. The scientist is
investigating
A. density
B. mass and weight
C. chemical changes
D. physical changes
Directions: Answer the following questions.
25. When a puddle of water evaporates, does the water change into a new kind of matter? Why or Why not?
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Directions: Identify the following changes as chemical or physical. Write a C on the line if the
change is chemical. Write a P on the line if the change is physical.
26. _____________ breaking a window
27. _____________ paper burning
28. _____________ rust on a metal cookie sheet
29. _____________ paper being cut into the shape of a snowflake
30. _____________ water evaporating from a puddle
31. _____________ wood burning in a campfire
32. _____________ making blueberry muffins
33. _____________ a melting popsicle
35. _____________ folding a paper into the shape of a bird
36. _____________ an Alka-Seltzer tablet bubbling in a cup of water
Directions: Circle the words that correctly completes each sentence.
37. When a cup of warm water is put in the refrigerator energy is (added to) (taken away from) the
water.
38. When the sun shines on a parking lot, energy is (added to) (taken away from) the parking lot.
39. When solid iron is melted, energy is (added to) (taken away from) the iron.
Directions: Circle the correct answer.
40. What kind of change changes water from liquid to a solid?
A. physical change
B. chemical change
C. particle change
D. matter change
41. A bicycle left in the rain rusts. What kind of change is this?
A. physical change
B. chemical change
C. energy change
D. change of state
42. A built-up electric charge is called
A. electrically neutral
B. a like charge
C. static electricity
D. an unlike charge
Directions: Identify the charge on each sample of matter by writing positive, negative or
neutral.
43 . ____________
44. _____________
45. ______________
Directions: Draw arrows to show whether the two objects in each set will attract or repel.
Directions: Circle the correct answer
48. You have a battery and a bulb, What else do you need to make a simple circuit?
A. wires
B. an insulator
C. static electricity
D. a source of electric current
49. Which direction does a the needle of a compass always point?
A. north
B. south
C. east
D. west
50. What makes an electromagnet different from a bar magnet?
A. only an electromagnet attracts materials made of iron
B. only an electromagnet can be turned on and off
C. only a bar magnet has a magnetic field
D. only a bar magnet has poles
Directions: Circle the words that correctly completes each sentence.
51. Flipping a switch on (opens) (closes) a circuit.
52. Flipping a switch off (opens) (closes) a circuit.
53. To increase the strength of an electromagnet you can wrap (more) (less) wire around the iron corn.
Directions: Use the picture to identify the two different types of circuits by filling in the blank.
54. Circuit A is a __________________ circuit.
55. Circuit B is a __________________ circuit.
Directions: List the three parts that every working circuit.
56. ____________________________
57. ____________________________
58. ____________________________
Directions for #59-61: Use the word bank to complete the Tree Map.
Parts of an Electromagnet
62. Circle the conductors and draw an X on the insulators
Directions: Tell whether each set of magnets will attract or repel.
Set A
63. Set A will ______________________ .
64. Set B will _______________________ .
Set B