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Science > Rachel-3rd Grade Science Part 2: Matter & Energy Systems > Flashcards

Rachel-3rd Grade Science Part 2: Matter & Energy Systems Flashcards

1
Q

What is a representation or example of some object or system in the real world?

A

Model

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2
Q

What is anything you can observe about an object by using your senses?

A

Physical Property

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3
Q

What is anything that has mass and takes up space?

A

Matter

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4
Q

What is a form of matter that takes up a specific amount of space and has a definite shape?

A

Solid

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5
Q

What is a form of matter that has volume, stays the same, but can change its shape?

A

Liquid

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6
Q

What is a form of matter that does not have a definite shape or definite volume?

A

Gas

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7
Q

What is the amount of space matter takes up?

A

Volume

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8
Q

What is the word to describe the process by which a liquid changes into a gas?

A

Evaporation

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9
Q

The changing of a gas into a liquid is called what?

A

Condensation

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10
Q

What is something that has two or more different types of matter?

A

Mixture

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11
Q

Name 3 things that Models are used to show?

A

1) Things that are far away like the solar system
2) Things that are small and must be seen through a microscope
3) How things work

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12
Q

What is a limitation of models?

A

They cannot include everything that is in the natural world.

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13
Q

The flag is red, white, and blue is an example of what type of property?

A

Color

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14
Q

Watermelon is sweet is an example of what type of property?

A

Odor

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15
Q

A pillow is soft is an example of what type of property?

A

Texture

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16
Q

A hose can bend without breaking is an example of what type of property?

A

Flexibility

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17
Q

A soccer ball is round is an example of what type of property?

A

Shape

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18
Q

The measure of how much matter is in an object is?

A

Mass

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19
Q

The particles of a __________ are spaced far apart and are able to move quickly?

A

Gas

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20
Q

The particles of a __________ are loosely packed and are able to move about by sliding past each other?

A

Liquid

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21
Q

Particles of a __________ are tightly packed and can only vibrate slightly in place?

A

Solid

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23
Q

True or False: liquids will not take the shape of their container?

A

False

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25
Q

What has a definite shape, volume and will stay the same unless you do something to change it?

A

Solid

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26
Q

What has no definite shape, has a definite volume and will change according to the shape of the container it is poured into?

A

Liquid

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27
Q

What has no definite shape and volume and will change according to the shape of the container it is poured into?

A

Gas

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28
Q

Air, helium, oxygen, and water vapor are all examples of?

A

Gas

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29
Q

True or False: Solids change shape when they are moved?

A

False

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30
Q

Milk, water, vinegar, and lemonade are all examples of?

A

Liquid

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31
Q

Name all six properties of matter?

A

Temperature, mass, weight, volume, magnetism, and the ability to float

32
Q

What property of matter describes when a liquid changes to a gas?

A

Boiling point

33
Q

True or False: A gas does not have a shape of its own?

A

True

34
Q

The measurement of the force of gravity pulling on an object is referred to as?

A

Weight

35
Q

The temperature at which a liquid changes to a solid represents what property of matter?

A

Freezing point

36
Q

A table, rock, ice, and metal are all examples of?

A

Solids

37
Q

The temperature at which ice becomes water refers to what property of matter?

A

Melting point

38
Q

What is the temperature at which water freezes?

A

0 degrees Celsius

39
Q

What is the temperature at which water boils?

A

100 degrees Celsius

41
Q

What are the three states of matter?

A

Solid, liquid, or gas

43
Q

The apple weighs 5 grams would be an example of what property of matter?

A

Mass

44
Q

What temperature will ice water stay until all the ice melts away?

A

0 degrees Celsius

45
Q

What temperature will boiling water stay until all the water boils away?

A

100 degrees Celsius

46
Q

What happens to water when it boils over a long period of a time?

A

It all evaporates

47
Q

If there is a measured amount of salt in the water as it boils and evaporates, you will have what amount of salt left after evaporation?

A

The same amount. None of the salt evaporates.

48
Q

The formation of water droplets on the outside of a glass of ice water is an example of what process?

A

Condensation

49
Q

Name two things that can be used to measure the amount of liquid or volume?

A

Graduated cylinders and beakers

50
Q

True or False: When reading a graduated cylinder, you look at the bottom of the liquid line?

A

True

51
Q

What is the bottom of the liquid line on a graduated cylinder is called?

A

Meniscus

52
Q

Half of a large bottle of soda is equal to about how many liters?

A

1 liter

53
Q

A few drops of water equals how many milliliters?

A

1 milliliter

54
Q

L is the abbreviation for form of measurement?

A

Liter

55
Q

The abbreviation mL stands for what form of measurement?

A

Milliliter

56
Q

What does it mean to sit on top of the water in the bucket?

A

Float

57
Q

What does it mean to drop to the bottom of the water in the bucket?

A

Sink

58
Q

What can attract objects made from certain metals, such as iron or attract (pull) and repel (push) other magnets?

A

Magnets

59
Q

What are three different ways that mixtures can be separated?

A

1) Use a magnet
2) Use a strainer
3) By hand

60
Q

True or false: No form of matter can change state when heat is added or removed?

A

False: some forms of matter CAN change states when heat is added or removed?

61
Q

True or false: Water is the only matter that can be easily seen in all three states?

A

True

62
Q

Name the two ways that adding heat can change matter?

A

1) Solid to a liquid or Melting

2) Liquid to a gas or Evaporation

63
Q

Name the two ways that taking away heat can change matter?

A

1) Gas to liquid or Condensation

2) Liquid to solid or Freezing

64
Q

The ability to cause change and do work is?

A

Energy

65
Q

Energy in motion is?

A

Mechanical Energy

66
Q

The energy that moves the particles in matter is called?

A

Thermal Energy

67
Q

The movement of thermal energy from one place to another is?

A

Heat

68
Q

What type of material allows thermal energy to move easily?

A

Conductor

69
Q

A material in which thermal energy does not move easily is?

A

An Insulator

70
Q

A form of energy that travels in waves is what type of energy?

A

Light energy

71
Q

What type of energy is made by vibrations?

A

Sound energy

72
Q

The light from our stars is an example of what type of energy?

A

Light energy

74
Q

Waves through vibrating matter such as from a radio is an example of what type of energy?

A

Sound energy

75
Q

What type of energy is found in moving objects, such as a ball rolling?

A

Mechanical Energy

76
Q

Machines use what type of energy?

A

Mechanical energy

78
Q

The energy of motion in particles like the heat from the sun is.

A

Thermal energy

Science (2 decks)

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