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CMS - 6th Grade - PRIOR NOTECARDS > Science - Chapter 3 - Test 10/31/13 > Flashcards

Science - Chapter 3 - Test 10/31/13 Flashcards

(76 cards)

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1
Q

Definition:

everything that has mass and takes up space

A

matter

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2
Q

All _____ around you is matter.

A

All stuff around you is matter.

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3
Q

Name a few examples of matter.

A
  • air
  • plastic
  • metal
  • wood
  • glass
  • paper
  • cloth
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4
Q

Definition:

the study of matter and how matter changes

A

chemistry

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5
Q

In chemistry, a _______ is a single kind of matter that is ______, meaning it always has a specific makeup, or composition.

A

In chemistry, a substance is a single kind of matter that is pure, meaning it always has a specific makeup, or composition.

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6
Q

Every form of matter has ____ kinds of properties.

A

Every form of matter has two kinds of properties.

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7
Q

Definition:

a characteristic of a substance that can be observed without changing it into another substance

A

physical property

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8
Q

Name a few examples of physical properties.

A
  • mass
  • volume
  • density
  • size
  • color
  • teture
  • taste
  • smell
  • hard
  • soft
  • slippery
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9
Q

Definition:

a characteristic of a substance that describes its ability to change into different substances

A

chemical property

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10
Q

Name a few examples of chemical properties.

A
  • silver that tarnishes
  • basketball hoop that rusts
  • charcoal briquettes
  • eaten apple that turns brown
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11
Q

Who was the Greek philosopher that proposed that all matter was made of four elements?

A

Empedocles

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12
Q

What were the four elements that Greek philosopher, Empedocles, proposed matter was made of?

A
  1. air
  2. earth
  3. fire
  4. water
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13
Q

Definition:

a substance that cannot be broken down into any other substance by chemical or physical means

A

element

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14
Q

In the 1600s, chemists found that matter is made of more than ____________.

A

In the 1600s, chemists found that matter is made of more than 100 substances called elements.

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15
Q

Elements are represented by ________.

A

Elements are represented by one or two letter symbols.

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16
Q

Name a few examples of element symbols.

A
  • C - Carbon
  • O - Oxygen
  • Ca - Calcium
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17
Q

Definition:

made of two or more substances that are together in the same place but their atoms are not chemically bonded

A

mixture

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18
Q

Definition:

mixtures where different parts can be seen and they usually can be separated out

A

heterogeneous mixture

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19
Q

Definition:

an mixture mixed evenly so that you can’t see the different parts

A

homogeneous mixture

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20
Q

Name a few examples of a homogeneous mixture.

A
  • sugar
  • coffee
  • air
  • honey
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21
Q

Name a few examples of a heterogeneous mixture.

A
  • cookie dough ice cream
  • fruit salad
  • beach sand
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22
Q

Definition:

a measure of the force of gravity on you

A

weight

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23
Q

When will the force of gravity be more?

A

If the planet is more massive than Earth, the force of gravity will be more.

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24
Q

When will the force of gravity be less?

A

If the planet is less massive than Earth, the force of gravity will be less.

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25
Definition: the amount of matter in an object
mass
26
If you travel to the moon, the amount of matter in your body (your mass) \_\_\_\_\_\_\_.
If you travel to the moon, the amount of matter in your body (your mass) ***_does not change._***
27
The mass of an object is a _______ property.
The mass of an object is a ***_physical_*** property.
28
To measure the properties of matter, scientists use a system called the \_\_\_\_\_\_\_\_\_\_\_\_, abbreviated SI
To measure the properties of matter, scientists use a system called the ***_International System of Units_***, abbreviated SI
29
The SI unit of _____ is kilogram (kg).
The SI unit of ***_mass_*** is kilogram (kg).
30
All matter has mass and \_\_\_\_\_\_\_\_.
All matter has mass and ***_takes up space_***.
31
The amount of space that matter occupies is called its \_\_\_\_\_\_.
volume
32
Name 3 common SI units of volume.
1. cm3 2. Liter (L) 3. milliliter (mL)
33
1 teaspoon of water has a volume of \_\_\_\_\_\_\_\_.
1 teaspoon of water has a volume of ***_5 milliliters_***.
34
Volumes of liquids are measure with a \_\_\_\_\_\_\_\_.
Volumes of liquids are measure with a ***_graduated cylinder_***.
35
Volumes of solids are measure using the formula \_\_\_\_\_\_\_\_.
L x W x H
36
Definition: the measure of the mass of a material in a given volume
density
37
How do you calculate density?
38
\_\_\_\_\_\_\_\_ has a density of 1 g / cm3
***_Water_*** has a density of 1 g / cm3
39
Objects with densities greater than that of water will \_\_\_\_\_\_; more dense.
Objects with densities ***_greater_*** than that of water will ***_sink_***; more dense.
40
Objects with densities less than that of water will \_\_\_\_\_\_; less dense.
Objects with densities less than that of water will ***_float_***; less dense.
41
What does the mixture oil and vinegar tell you about the density?
Oil is less dense than vinegar so it moves to the top.
42
A _______ change alters the form or appearance of matter but does not turn any substance in the matter into a different substance.
physical
43
Name 2 examples of physical change substances.
* sand sculpture * butter
44
A substance that undergoes a physical change is still the ________ substance after the change.
A substance that undergoes a physical change is still the ***_same_*** substance after the change.
45
Name 4 examples of physical changes.
1. bending 2. crushing 3. breaking 4. chopping
46
Name the 3 states of matter.
1. solid 2. liquid 3. gas
47
Describe solid characteristics.
matter with a definite shape and volume
48
Describe liquid characteristics.
matter that has a definite volume but no definite shape
49
Describe gas characteristics.
matter that does not have a definite shaper or volume
50
A change in state such as from a solid → liquid or from a liquid → gas, is an example of a \_\_\_\_\_\_\_\_\_\_.
A change in state such as from a solid → liquid or from a liquid → gas, is an example of a ***_physical change_***.
51
Give an an example of a physical change in state.
dissolving sugar in water
52
A _________ is a change in matter that produces one or more new substances.
A ***_chemical change_*** is a change in matter that produces one or more new substances.
53
Give an example of a chemical change.
hydrogen peroxide breaks down into water and oxygen gas when it’s poured on a cut on your skin
54
A chemical change produces _________ with new and different properties.
A chemical change produces ***_new substances_*** with new and different properties.
55
French chemist, \_\_\_\_\_\_\_\_\_\_, measured mass _before_ and _after_ a chemical change.
French chemist, ***_Antoine Lavoisier_***, measured mass before and after a chemical change.
56
What did Antoine Lavoisier's data show?
His data showed that no mass was lost or gained during the change.
57
Definition: the fact that matter is not created or destroyed in any chemical or physical change
law of conservation of mass
58
Give an example of a solid.
pencil
59
Describe the particles that make up a solid.
The particles are packed very closely together and vibrate in place (they move back and forward slightly).
60
The shape of a liquid may \_\_\_\_\_\_\_\_\_\_\_, but its volume remains the same.
The shape of a liquid may ***_change with its container_***, but its volume remains the same.
61
Describe liquid particles.
The particles of a liquid are packed closely together but they move around freely.
62
A liquid is also called a \_\_\_\_\_, meaning a \_\_\_\_\_\_.
A liquid is also called a ***_fluid_***, meaning a ***_"substance that flows"_***.
63
Describe gas particles.
As gas particles move, they spread apart, filling all the space available
64
Definition: The change in state from a solid to a liquid
melting
65
Melting occurs at a specific temperature, called the \_\_\_\_\_\_\_\_.
Melting occurs at a specific temperature, called the ***_melting point_***.
66
The melting point of pure water is \_\_\_\_\_.
The melting point of pure water is ***_0oC_***.
67
Definition: The change in state from a liquid to a solid
freezing
68
What is the freezing point of water?
0o Celcius
69
The freezing point of water is the _______ as its melting point.
The freezing point of water is the ***_same_*** as its melting point.
70
When water begins to freeze, its temperature stays at 0oC until freezing is \_\_\_\_\_\_\_.
When water begins to freeze, its temperature stays at 0oC until freezing is ***_complete_***.
71
Definition: the change in state from a liquid to a gas
vaporization
72
The temperature at which a liquid boils is called its \_\_\_\_\_\_\_\_\_.
The temperature at which a liquid boils is called its ***_boiling point_***.
73
When water boils, vaporized water molecules form ______ below the surface.
When water boils, vaporized water molecules form ***_bubbles_*** below the surface.
74
Sublimation occurs when the surface particles of a solid gain enough energy that they form a \_\_\_\_\_\_.
Sublimation occurs when the surface particles of a solid gain enough energy that they form a ***_gas_***.
75
In places where the winters are cold, the snow may disappear even when the temperature \_\_\_\_\_\_\_\_\_\_\_.
In places where the winters are cold, the snow may disappear even when the temperature ***_stays well below freezing_***.
76
Example: ______ is the common name for solid carbon dioxide
Example: ***_dry ice_*** is the common name for solid carbon dioxide

CMS - 6th Grade - PRIOR NOTECARDS (56 decks)

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