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Chapter 1: Introduction to Matter Flashcards | StudBud
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Chapter 1: Introduction to Matter
Chapter 1: Introduction to Matter
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Chapter 1 Review: Introduction to Matter #science #7thgrade #matter
Flashcards
45 cards
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Questions
45
Answers
1
The change in which ice absorbs energy and melts is an ____.
exothermic change
endothermic change
2
A pure substance made of two or more elements chemically combined in a set ratio
compound
atom
element
molecule
3
Soil, a salad, and sugar water are all examples of _____.
elements
atoms
compounds
mixtures
4
All elements are made of basic particles called ____.
mixtures
molecules
atomes
compounds
5
How do liquid water, ice, and water vapor differ from each other?
They are different compounds
They are different kinds of atoms.
They are different states of matter.
They are made of different types of molecules.
6
H2O, CO2, and O4H2C8 are all examples of chemical _____.
bonds
formulas
properties
changes
7
This is an example of what type of mixture?
homogeneous mixture
heterogenous mixture
8
How would you calculate the density of an object?
multiply its weight times its mass
divide its mass by its volume
divide its weight by its volume
multiply its volume times its mass
9
The ability to do work or cause change
compound
matter
temperature
energy
10
Compound may be represented by a ____ which shows elements in the compound & the ratio of atoms
chemical formula
mixture
chemical bond
molecule
11
The SI unit for mass is the _____.
liter
ounce
pound
kilogram
12
The volume of an irregular object can be measured by...
multiplying the objects length, width, and height
submerging the object in water in a graduated cylinder
13
The basic particle from which all elements are made
molecule
element
atom
compound
14
The measure of how much mass is contained in a given volume is called ____.
density
weight
melting point
boiling point
15
Which is a physical property?
ability to rust
color
ability to tarnish
ability to burn
16
The amount of space that matter occupies is
density
volume
weight
mass
17
Pure substance that cant be broken down into any other substances by chemical or physical means
atom
element
molecule
compound
18
Which is an example of a chemical change?
bending a paper clip
freezing water
burning wood
crushing a pop can
19
This is an example of what type of mixture?
heterogeneous mixture
homogeneous mixture
20
One example of a physical change is
dissolving salt in water.
baking brownies
burning paper
toasting marshmallows
21
The amount of matter in an object is its
mass
weight
volume
density
22
Fireworks exploding in the sky and giving off light are an example of a(n)...
exothermic change
change in mass
physical change
endothermic change
23
Relates the mass of a material in a given volume
weight
density
mass
volume
24
The study of the properties of matter and how matter changes
matter
chemistry
substance
element
25
Internal energy stored in chemical bonds between atoms is a form of potential energy
kinetic energy
chemical energy
potential energy
electrical energy
26
The energy of matter in motion
kinetic energy
potential energy
electrical energy
thermal energy
27
A form of energy that travels through space as waves
electromagnetic energy
kinetic energy
electrical energy
chemical energy
28
The measure of the force of gravity on you is ______.
volume
weight
SI
density
29
This is an example of what type of change in matter
exothermic change
endothermic change
30
Atoms combine to form larger particles called -- groups are held together by chemical bonds
elements
molecules
atoms
compounds
31
What holds atoms together in a molecule?
peanut butter
physical bonds
gravity
chemical bonds
32
This is an example of what type of change in matter
exothermic change
endothermic change
33
True or False: Weight does not change in different places
False
True
34
The total energy of all the particles in an object
thermal energy
potential energy
kinetic energy
temperature
35
Anything that has mass and takes up space
chemistry
element
substance
matter
36
Calculate Density. Mass = 125 g, Volume = 5 cm
3
30 cm3
25 cm3
25 g/cm3
20 g/cm3
37
The ability to do work or cause change
energy
Matter
temperature
density
38
Calculate Volume. Length = 5 cm, Width = 3 cm, Height = 10 cm
140 m3
150 cm
120 g/cm3
150 cm3
39
Anything that has mass and takes up space is called _____.
heterogeneous
energy
homogeneous
matter
40
The energy an object has because of its position
kinetic energy
potential energy
electrical energy
thermal energy
41
One example of a chemical change is
burning wood
crushing a can
chopping an apple
boiling water
42
Two or more substances that are together in the same place but are not chemically combined
mixture
atom
compound
element
43
A single kind of matter that is pure and has a specific set of properties
matter
substance
atom
chemistry
44
When atoms combine they form a _________ which is a force of attraction between two atoms
chemical formula
molecule
chemical bond
atom
45
The energy of electrically charged particles moving from one place to another
chemical energy
kinetic energy
electrical energy
electromagnetic energy
