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11/21 Megaquiz Flashcards | StudBud
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11/21 Megaquiz
11/21 Megaquiz
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1
Which of the following statements is true?
Sugar is insoluble in water.
Sugar will dissolve faster if sugar cubes are used.
Sugar will dissolve faster in hot water.
Sugar will dissolve faster if you put ice in the water.
2
Which of the following represents a chemical change?
Carbonic acid in cola changing into carbon dioxide and water.
Water droplets condensing on the outside of a glass of cold cola.
Liquid cola freezing into solid form.
Ice cubes melting into a glass of cola.
3
to use any of the five senses to gather information about something
property
observe
substance
inference
4
If a substance dissolves in water, then that substance is not soluble.
True
False
5
A substance is matter that is made of different molecules.
False
True
6
When a mixture separates it is called a(n) _________.
unstable mixture
stable mixture
salad dressing
substance
7
Sugar is soluble in water.
False
True
8
matter that is made of more than one substance
mixture
molecule
matter
substance
9
If something is able to dissolve in water or another liquid, it is said to be
watery
mixed
melting
soluble
10
What causes molecules to attach to one another?
attraction
volume
push
magnetism
11
If a solid dissolves in a liquid it is called a ____________.
solid
substance
solvent
soluble
12
Making cheese from milk is an example of
a change in state
a physical change
no change
a chemical change
13
Continent 5
Europe
Asia
North America
Australia
14
If two molecules have a low attraction, do they need an emulsifier?
no
yes
15
__________ is information that supports an answer to a question.
Evidence
Nanoscale
Investigation
Solution
16
Citric acid is soluble in water.
False
True
17
Crayons melting and then hardening back into a lump of wax is an example of
a physical change
a chemical change
a change in mass
no change
18
An emulsifier...
attracts the molecules of two liquids that do not mix.
does not attract molecules.
attracts the molecules of two liquids that do mix.
is a Fortnite game.
19
to mix evenly into a liquid by breaking apart into pieces that are too small to see
property
matter
dissolve
soluble
20
a group of atoms joined together in a particular way
molecule
mixture
property
atom
21
Why was Maya unable to see the sugar in the lemonade?
She forgot to put on her glasses.
She was only looking at the water.
The sugar dissolved.
There was no sugar in the lemonade.
22
This nanoscale model shows ...
a mixture of water and sugar molecules.
water molecules about to be mixed with sugar molecules.
sugar molecules dissolved in water.
water and sugar molecules diluted.
23
Ocean 3
Atlantic
Pacific
Indian
Arctic
24
Which two liquids need an emulsifier?
milk and water
all liquids
citric acid and water
oil and vinegar
25
__________ means "to mix evenly into a liquid by breaking apart into pieces that are too small to see."
Investigate
Mixture
Dissolve
Attract
26
To mix evenly into a liquid by breaking apart into pieces that are too small to see is called
evaporating
mixing
dissolving
modeling
27
True or False: All liquid mixtures stay mixed and never separate.
True
False
28
Look at the image. How would you describe the attraction between molecules 1 and 6?
high attraction
low attraction
29
What evidence was proven by this investigation?
There was still sugar in the mixture.
The lemonade was not sweet enough.
The lemonade was too sweet.
There was no sugar in the mixture.
30
Nanoscale models help us see things that are too small to see, such as molecules.
True
False
31
something you figure out based on observations and what you already know
inference
observe
matter
property
32
How can you tell when you mix a solid into a liquid, if the solid has dissolved?
The solid floats.
The solid disappears
The solid sinks.
The solid changes color.
33
able to dissolve in water or another liquid
soluble
substance
dissolve
molecule
34
Gas bubbles, change in temperature, and color change are all signs of
a change in state
a physical change
a change in shape
a chemical change
35
This image shows ...
sugar molecules being attracted to water molecules.
sugar molecules being attracted to the spoon.
a spoon breaking up a big clump of sugar molecules.
sugar molecules not being attracted to water molecules.
36
something scientists make to answer questions about the real world
inference
explain
model
substance
37
Matter that is made up of more than one substance is
a mixture
soluble
a molecule
an atom
38
matter that is made of only one kind of atom or molecule
dissolve
substance
mixture
atom
39
what you can observe or measure about something that helps you identify or describe it
property
substance
atom
observe
40
Continent 6
Asia
Africa
Antarctica
North America
41
A group of atoms joined together in a particular way is called
a substance
an atom
a molecule
a mixture
42
the stuff that things are made of
molecule
mixture
atom
matter
43
Which one is NOT an emulsifier?
lecithin
corn starch
citric acid
flour
44
information that supports an answer to a question
explain
inference
property
evidence
45
An emulsifier _____________________________.
attracts the molecules of two liquids that DO NOT mix
plays Fortnite
attracts the molecules of two liquids that DO mix
does not attract molecules
46
A _________is what you can observe or measure about something that helps you identify or describe it.
model
property
mixture
substance
47
Matter that is made of only one type of atom or molecule is
a reaction
a substance
a mixture
a property
48
Continent 2
Antarctica
Europe
Asia
Africa
49
Look at the image. How would you describe the attraction between molecules 1 and 5?
high attraction
low attraction
50
to pull on an object, even without touching it
property
inference
dissolve
attract
51
Continent 4
Antarctica
Africa
South America
Australia
52
This image shows ...
sugar molecules sticking onto water molecules and spreading out evenly.
sugar molecules not mixing with water molecules.
water molecules separating from the sugar molecules.
triangles.
53
to describe how something works or why something happens
property
substance
explain
observe
54
We can understand things that are too small to see, such as molecules, by ...
looking at and using models to help us understand them.
dissolving substances.
evaporating water.
using a telescope.
55
Soluble means to be able to dissolve in water or another liquid.
True
False
56
Which substance will probably not dissolve in water?
dirt
Kool-aid mix
sugar
salt
57
A chemical reaction is when the particles of a substance are rearranged
to form a new substance
to form the same substance in a different state of matter
to form the same substance but with different properties
to form a new substance that has less mass
58
Which two liquids have similar properties and are most likely attracted to each other?
water and vinegar molecules
water and gasoline molecules
water and honey molecules
water and oil molecules
59
Ocean 4
Pacific
Arctic
Atlantic
Indian
60
a tiny piece of matter that is too small to see
mixture
matter
atom
molecule
61
Continent 1
Africa
South America
Asia
North America
62
When a mixture stays mixed it is called a __________.
salad dressing
stable mixture
substance
unstable mixture
63
In the book "Solving Dissolving," Maya and her brother investigate a _____ made up of lemon juice, sugar, and water.
solvent
mixture
substance
solute
64
__________ is an attempt to find out about something.
Solubility
Attraction
Mixing
An investigation
65
If two molecules have a high attraction, do they need an emulsifier?
no
yes
66
Cinnamon is soluble in water.
True
False
67
True or False: Some liquids hold together more than others.
True
False
68
__________ means "to pull on an object, even without touching it."
Mixture
Explain
Attract
Soluble
69
When molecules of a solid aren't attracted to molecules of a liquid they
separate into layers
stay clustered together as a solid
spread apart and mix together evenly
evaporate into the air
70
All substances are soluble in hot water.
False
True
71
Continent 7
Asia
Africa
Australia
South America
72
Ocean 2
Arctic
Pacific
Atlantic
Indian
73
When cinnamon is mixed with water, ...
the cinnamon dissolves in water.
the molecules in cinnamon are not attracted to water molecules.
the water dissolves in cinnamon.
the molecules in cinnamon are attracted to water molecules.
74
Continent 3
Asia
Africa
Europe
North America
75
Ocean 1
Atlantic
Pacific
Indian
Arctic
76
A tiny piece of matter that is too small to see is called
an atom
a particle
a solid
a mixture
77
What causes liquid mixtures to separate into layers?
Molecules are not attracted to one another.
Some molecules are heavier than others.
Molecules are highly attracted to one another.
Some molecules have more volume than others.
78
When molecules of a solid are attracted to molecules of a liquid they
evaporate into the air
stay clustered together as a solid
spread apart and mix together evenly
separate into layers
