Gr. 3 - Matter and Energy - HW Packet (2012)

Grade: 3 Unit 1: Matter and Energy Science Homework

Student Number:

Name: _____________________________ Room: _____ Date: __________________Grade: 3 Unit 1: Matter and Energy Science Homework______________________________________________________________________

Homework packet link: https://sites.google.com/a/ccs-rams.org/pan/

Investigation 1 Part 1: Energy Sources

1. What is the source of most Earth’s energy? (p.3)

(Circle the one correct answer.)

a. The Sun

b. The moon

c. Water

2. What two forms of energy do we get from the Sun? (p.3)

___________________________________________________________________

3. Which one of the following are examples of stored energy? (p.4~9)

(Mark all the correct answers.)

_____ battery _____ fuel _____ wire

_____ light bulb _____ food _____ coal

_____ oil _____ wood _____ gasoline

4. What is fuel? (p.4)

(Circle the one best answer.)

a. Energy from the Sun

b. Heat

c. Stored energy

5. To convert means to ____________________. For example, coal is converted

into heat when it is burned; food is converted into energy when it is digested. (p.4,

Word Bank for Investigation 1 Part 1)

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https://sites.google.com/a/ccs-rams.org/pan/


6. Matching: Draw a line from each living things or object in the left column to the

source of the energy it uses in the right column.

Investigation 1 Part 2: Converting Energy

7. As food breaks down in your body, chemical energy in the food is converted to

what two forms of energy? ____________________ and ____________________.

(p.10)

8. When plants die and got buried deep underground, for a long time, they become

____________________ fuels such as oil, coal, and natural gas. (p.11)

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9. Which of the following needs energy?


_____ to ride a bike

_____ to read a book

_____ to heat a house

_____ to power a car

_____ to build a birdhouse

_____ to think about what to do for the weekend

10. Connect Concepts:

Use the terms in the Word Bank to complete the concept map.

Motion Food Sun Heat Batteries

11. Where do animals get energy to grow? (Circle the one best answer.)

a. Food

b. Heat

c. Water

d. Rest

e. Electricity

Almost all energy on Earth comes from

a. _____________

which can be stored in

b. _____________ c. _____________fuel

and can be used by animals for energy.

and can be burned to produce d. _________ and e. _____________.

and can be used to supply electricity to toys and appliances.

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12. Stored energy in corn can be converted to what other forms of energy? (p.14)

(Circle all correct answers)

a. heat

b. motion

c. light

d. electricity or electric current

13. Park has a flashlight that won’t light up, and he thought the light bulb didn’t have

any energy stored in it. His sister, Li Mei, told him that the flashlight isn’t where the

energy is stored.

a. Where is the stored energy in a flashlight? _______________________________

b. What is the energy converted to? ______________________________________

Investigation 1 Part 3: Energy on the Move

14. Connect Concepts: Use the terms in the Word Bank to complete the concept

map.

Sound waves Electric current Water waves

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15. ___________________ is the flow of electric energy from the battery to the

motor through wires. (p.16)

16. ___________________ is a regular, repeating movement, like up-and-down or

back-and-forth. (p.17)

17. When a bell rings, its vibration creates ________________ waves that travel

through air. The waves finally hit little bones in your ear, so you can hear the sound

of the bell. (p.17)

18. When you go bowling, the energy is carried from your body to the bowling ball,

and to the pins. What can be another example of energy being carried by moving

objects?

___________________________________________________________________

___________________________________________________________________

Investigation 2 Part 1: Reflected Light

19. ____________________ is anything that makes light, such as the Sun, a

lightbulb, or a flame. (p.26)

Energy can be carried from one place to another by

a. ______________moving objectswaves

For example: batteries are used to power the spinning shaft in motor c. _____________b. _____________

includes

For example: fire truck comes by and we hear the whistle

For example: powerful tsunami destroys areas near the coast

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20. ____________________ travel from a light source in straight lines in all

directions. (p.26)

21. We cannot see anything in a dark room. If there is a light source, we can see

things because the light rays from the light source enter our __________________.

(p.27)

22. When light rays ____________________, they bounce off an object or surface

such as a piece of paper. (p.27)

23. It is 9 o’clock in the morning, you are hiking in Lake Chabot Park with family and

suddenly you see a butterfly flying by. How does the light work to make you see the

butterfly? Put in order the following events: (p.27)

1. ____ 2. ____ 3. ____

a. Light enters the eyes.

b. Light rays come from the Sun.

c. Light rays reach the butterfly and reflect in straight line, to another direction.

24. How does reflected light allow us to see an object? (Circle the one best answer.)

a. Light reflects from our eyes onto an object.

b. Light reflects off an object and into our eyes.

c. Light reflects off the Sun to our eyes.

25. A _____________________ is a smooth and shiny surface that reflects light.

(p.28)

26. Sailors in submarines are able to look around the ocean’s surface because they

use a ______________________, which is a device made with two mirrors. (p.28)

27. If a mirror is placed on the line next to the picture of the snail below, which of the

following would show the image of the snail in the mirror? (Circle the one best

answer.)

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28. Aiyana set four mirrors around a barrier as shown below, but she found she

could not see the object on the other side.

29. Olivia wrote in her science notebook, “A mirror reflects light. But I do not make

light. So how can I see myself in a mirror?” Explain to Olivia how a mirror works.

___________________________________________________________________

___________________________________________________________________

Investigation 2 Part 2: Colored Light

30. T or F. Objects such as an orange do not reflect light, only a mirror reflects light.

(p.32)

31. T or F. An orange looks blue in blue light. (p.33)

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32. _____________________________ is all colors of light mixed together, so it is a

combination of red, orange, yellow, green, blue, indigo, and violet lights. (p.35)

33. Lights can be absorbed by an object or a surface. To ___________________

means to take in or soak up. (p.35, or Word Bank for Investigation 2 Part 2 )

34. When light hits an object or a surface, it can either ___________________

(bounce off) or be _____________________ (taken in or soaked up) by the object or

surface. (p. 36, or Word Bank for Investigation 2 Part 1 & 2 )

35. Fill the blanks with orange, blue, or black.

Since we can only see lights being reflected from an object or a surface, we cannot

see lights being absorbed. For example, when an orange is placed under white light,

it reflects orange light from the white light and its color appears ______________.

When it is placed under blue light, there is no orange light being reflected, the blue

light is absorbed by the orange, so the color of the orange becomes

_____________.

36. Which of the following objects would appear black in a room lit with only red

light?

(Circle the one correct answer.)

a. A white block

b. A blue chair

c. A red ball

37. T or F. When light is reflected, it is still light. When light is absorbed, it is

converted into another form of energy, such as heat energy. That is why a black T-

shirt will feel warm under the sun, because all lights are absorbed and converted to

heat. (p.36)

38. A mirror can change the ________________ of the light so you can see what is

going on behind you. (p.37)

39. Why does a green leaf appear green in sunlight?

Sunlight is white light. The green leaf reflects _________________ light and absorbs

all other colors of light.

40. Why does a green leaf appear black in red light?

Does the green leaf reflect red light? (Yes / No)

The green leaf absorbs ____ light, therefore the green leaf appears black in red

light.

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41. A __________________ is a dark area where an object has blocked the light.

(Word Bank for Investigation 2 Part 2 )

42. In order to create a shadow, there must be a _________________________

such as a light bulb, and an object to block the light.

43. Which of the following are sources of light (they create their own light)?


_____ the Sun

_____ a burning match

_____ a mirror

_____ the Moon

_____ your eyes

_____ stars

44. What direction do shadows always point? (Circle the one best answer.)

a. Toward the Sun

b. Away from the Sun

c. To the left

Investigation 3 Part 1: Fact of the Matter

45. ______________ is anything that has mass and takes up space. It is the stuff

that everything is made of. (p.41 or Word Bank for Investigation 3 Part 1).

46. Matter is found on Earth in three common forms or ______________. (p.41)

47. ______________ have definite shape and they keep that shape all the time.

They do not change shape unless you do something to change, like bend it or cut it.

(p.41)

48. ______________ can flow and takes the shape of the container it is in. They do

not form a pile, but a puddle. (p.42,44)

49. ______________ is shapeless and expands to fill a closed container. (p.43)

50. Look at the list of matter below. Put an S in front of each solid, an L in front of

each liquid, and a G in front of each gas.

_____ rock _____ juice _____ sand

_____ air _____ shirt _____ helium inside a balloon

_____ plastic cup _____ oil _____ gasoline

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51. John and Tony go to the circus. They see a lion, a giraffe, and an elephant. John,

Tony and the animals are matter because they ____________________.

a. take up space

b. are breathing

c. are at the circus

52. John buys Tony balloons to take home from the circus. Which state of matter is

the helium inside the balloon?

a. gas

b. solid

c. liquid

53. How can you tell if a sample of matter that pours is solid or liquid? (p.44)

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

Investigation 3 Part 2: Weighty Matters

54. Teasha has not performed an experiment on sponges, yet she claimed that

natural sponges last longer than synthetic ones (manmade). Was her claim based

on opinion or evidence? (p.45) ______________

55. Teasha and Kim soaked and weighted 3 natural sponges and 3 synthetic

sponges. Why did they repeat the experiments? (p.46)

Teasha and Kim repeated the experiments because__________________________

________________________________________________________________

56. ______________ is the measure of how much stuff is in an object. (Word Bank

of Investigation 3 Part 2)

57. ______________ is the basic unit of mass in the metric system. For example, a

newborn baby may weight around 3,000 grams. (Word Bank of Investigation 3 Part

2)

58. ______________ are based on what a person believes to be true, not on

scientific data. ______________ is based on observation and scientific data. (p.48)

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59. Orenda and Akia each used marbles to weigh the same apple. Both used the

correct procedure. Their results are shown below.

Orenda Akia

33 marbles 60 marbles

a. Since they weighed the same apple, why do you think they got different

results?

______________________________________________________________

b. What could they do to make their results more useful for other students?

______________________________________________________________

60. Look at the picture below.

a. Which of the following could be the mass of the ball?


A. 20 grams

B. 30 grams

C. 40 grams

b. Why do you think that is the mass of the ball?

______________________________________________________________

______________________________________________________________

Investigation 3 Part 3: A Matter of Volume

61. The _________________________ is a system of weights and measures based

on multiples of ten. (Word Bank of Investigation 3 Part 3)

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62. The metric system is based on a unit called ______________, which comes from

the Greek word metron for measure. (p.49)

63. Prefixes such as milli, centi, and deci are added to the beginning of the word

“meter” to represent different units. For example, one ______________ is one-

hundredth of a meter. (p.49)

64. ______________ is the basic unit of liquid volume in the metric system. (p. 49,


65. Almost all countries except the United States use the metric system as the

standard system. Why is it important to use a standard unit when making

measurements? (p.50)

___________________________________________________________________

___________________________________________________________________

66. One ______________ is is 1/1000 of a liter; 1000 milliliters equal 1 liter (1

milliliter equals 1 cubic centimeter). (Word Bank for Investigation 3 Part 3)

67. Fill in the blank:

Metric System

Basic Unit Equipment for measurement

Length meter (m) Ruler, tape measure

Mass a. ______________ Balance

Volume liter (L) b. ____________________

Or

c. ____________________

(p.53)

68. What is the volume of water in the graduated cylinder shown at right?

(Each increment equals 1 mL)

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69. A graduated cylinder is used for measuring


a. Mass.

b. Volume.

c. Temperature.

70. A paper clip has a mass of 1 gram. A train has a mass of thousands of kilograms.

What is the best unit to be used when recording the mass of a bicycle? (p.53)


a. kilogram

b. gram

c. liter

71. What is the difference between evidence and opinion? (p.53, check question#59)

Evidence is based on _________________________________________________.

Opinions are based on ________________________________________________.

Investigation 4 Part 1: Measuring Temperature

72. ______________ is a measure of how hot or how cold something is. (Word Bank

for Investigation 4 Part 1)

73. ______________ is a tool used to measure temperature. (Word Bank for

Investigation 4 Part 1)

74. ________________________ is the metric unit of temperature. (Word Bank for

Investigation 4 Part 1)

75. What measuring tool should be used to measure the temperature of a cup of

water?


a. thermometer

b. balance

c. graduated cylinder

76. What is the temperature shown in the thermometer?

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77. What units are used in the metric system for reporting temperature?

a. milliliters

b. degrees Celsius

c. centimeters

Investigation 4 Part 2: Melting and Evaporation

78. ______________ is the change of state from solid to liquid as a result of heating.

(Word Bank from Investigation 4 Part 2)

79. What causes materials to melt from solids to liquids? (p.56) ______________

(one-word answer)

For example, if you put a chunk of margarine in a cup of hot water, it will melt.

80. Materials melt at different temperatures. For example, water melts at 0 °C,

chocolate melts at about 50 °C, candle wax melts around 80 °C, and pebble melt at

1,000 °C. Therefore at 99 ° C , which one of the following will be melted into

liquid? (p.57)

(Circle all correct answers.)

Water Chocolate Candle wax pebble

81. Emmet tried to melt a sugar cube in a cup set in hot water. After 5 minutes the

sugar did not melt. He said, “Sugar won’t melt.”

What could Emmet do to try to melt the sugar?


a. Leave the cup wit the sugar in the hot water longer.

b. Use less sugar in the cup.

c. Add more heat by putting the sugar over a flame.

82. ______________ is the change of state from liquid to gas as a result of heating.

(Word Bank from Investigation 4 Part 2)

83. What causes liquids to evaporate? ______________ (one-word answer) For

example, wet cloth gets dry on a hot day in couple of hours.

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84. When invisible water vapor rises up high in the sky and cools, the water vapor

changes back into liquid. This liquid becomes visible, which is ______________.

(p.58)

85. A shallow pond can dry up because of ____________. (Choose one correct

answer)

a. ice

b. cold weather

c. heat and evaporation

d. snow falling during the winter

86. Alanna was heating some water for tea in a teapot on the stove. She left to

answer the telephone and forgot about the water in the teapot. When she came

back, the teapot was empty.

a. What happened to the water in the teapot? The water in the teapot

______________.

b. Why did this happen? ____________________________________________

______________________________________________________________

87. ______________ is the smallest particle of an element. The building blocks of

matter. (p.59, Word Bank for Investigation 4 Part 2)

88. Atoms in ______________ are vibrating and jiggling as they stuck together.

(p.60)

89. Atoms in ______________ touch, but they flow past one another. (p.60)

90. Atoms in ______________ fly around, crushing into things and bouncing off in

new directions. (p.61)

91. What would liquid atoms look like in an empty container? Draw circles to

represent atoms: (p.60)

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92. A piece of gold is made of ______________ atoms only, and a piece of copper is

made of ______________ atoms only. (p.62)

93. A piece of matter that is made of just one kind of atom is an ______________.

(p.62)

94. The __________________________________________________ shows all the

90 natural elements and 20 elements made by scientists in laboratories. (p.62)

95. In ancient times, scholars thought all matter was made of only four elements.

What are the four ancient elements? (p.63) (Mark the four correct answers.)

_____ oxygen _____ water _____ fire _____ hydrogen

_____ atoms _____ earth _____ air

96. Water is a combination of hydrogen and ______________ atoms. (p.63)

97. What is the smallest particle that makes up elements? (Circle the one best

answer.)

a. Matter

b. Air

c. Atom

98. Different types of atoms, such as gold, oxygen, and hydrogen, are called


a. elements.

b. earth.

c. air.

Investigation 4 Part 3: Reactions

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Solid Liquid Gas


99. A ______________ is a material that has unique, describable properties. For

example, vinegar is a substance that is in liquid state and with a strong smell. (p.65,


100. A ______________ happens when substances interact to make one or more

substances that have different properties than the starting substances. (p. 66, Word

Bank for Investigation 4 Part 3)

101. After Carlo mixed vinegar and baking soda together, a gas called

________________________ formed. He knew this was a new substance because

no solid baking soda was left, and the smell of vinegar disappeared. (p.66)

102. After the reaction between vinegar and baking soda took place, there was less

mass in the reaction cup. Why do you think that happen? (p.67)

___________________________________________________________________

___________________________________________________________________

___________________________________________________________________

103. There are about 90 different natural elements, but about millions of different

substances on Earth. How do new substances form? (p.67)

___________________________________________________________________

___________________________________________________________________

104. What happens to the atoms in a liquid when it is heated? (Circle the one best

answer.)

a. The atoms move slower.

b. The atoms move the same speed.

c. The atoms move faster.

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Gr. 3 - Matter and Energy - HW Packet (2012)

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