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Unit 1 Review for final Flashcards | StudBud
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Unit 1 Review for final
Unit 1 Review for final
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A #science #quiz to practice the #equation to find #density with #grade8 #middle #school.
Flashcards
25 cards
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Practice quiz
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Host live
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Questions
25
Answers
1
Which substance is more dense?
Substance A
Substance B
2
What happens to matter during chemical changes?
its composition changes
it retains its identity
only the state of matter changes
only the form of the matter changes
3
An element is made of one type of
molecule
compound
atom
mixture
4
What is the definition of
matter
?
Matter is made of water.
Matter is anything with mass, but not volume.
Matter is anything that takes up space and has mass.
Matter has weight and a definite shape.
5
The metric unit for mass is the
mg (milligram)
g (gram)
kg (kilogram)
L (liter)
6
The slope of a mass vs. volume graph is the:
Volume
Mass
Weight
Density
7
Is air an element, mixture or compound?
Element
None of these
Compound
Mixture
8
When salt dissolves in water, a _____________ change has taken place
no change
chemical and physical
chemical
physical
9
The scientific study of matter and the physical and chemical changes of matter is known as:
chemistry
physics
psychology
anatomy
10
Is
salt
an element, compound, or mixture?
Mixture
Compound
Element
11
Which answer shows examples of chemical changes?
fireworks, baking a cake, digesting food
building a fire, making toast, breaking a pencil
cutting your hair, burning paper, melting ice cream
cutting vegetables, mowing the lawn, freezing water
12
The metric base unit for volume is the
m (meter)
L (liter)
g (gram)
mL (milliliter)
13
Density is a property that can be used to identify a substance.
False
True
14
On a mass vs volume graph, density is the:
slope of the line
y - intercept
x value
15
A compound is made of
two or more different elements bonded together
elements and compounds stirred together
one on type of atom
two or more of the same elements bonded together
16
All of the following statements are true about physical changes EXCEPT:
ubstances at the end are the same as at the beginning
freezing water into ice is an example
new substance with a different composition is made
dissolving salt in water is an example
17
Elements, compounds or mixtures?
Mixtures of elements
Mixtures of compounds
Elements
Compounds
18
Chemical changes include all except
Melting iron
Burning
Acid and zinc produce Hydrogen gas
Digesting food
19
When a substance has multiple different types of compounds and/or elements it is called
A mixture
An atom
An element
A compound
20
What is the density of substance y?
2 g/cm3
4 g/cm3
0.25 g/cm3
0.5 g/cm3
21
Phase changes (like boiling) are physical changes.
False
True
22
Chemical changes include all except
Burning
Melting iron
Digesting food
Acid and zinc produce Hydrogen gas
23
Elements, compounds or mixtures?
Mixtures of compounds
Compounds
Elements
Mixtures of elements
24
Which color is the most dense?
green
red
yellow
blue
25
What is it called when a chemical changes its state but not its composition?
physical change
chemical change
peristalsis
homeostasis
