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Matter
Matter
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Matter- atoms, molecules, compounds, the periodic table, physical & chemical reactions
Flashcards
20 cards
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Questions
20
Answers
1
In a
chemical reaction
: matter is never ________ or _________ .
made or changed
gas or sloid
moved or misplaced
created or destroyed
2
A substance made of only 1 type of atom is ________________.
a compound
an atom
a periodic table
an element
3
Which is a
chemical reaction
?
sugar cubes melting in H2O
a cake baking in an oven
ice cream melting
ice cubes forming in a freezer
4
What are some
physical properties
of metal?
shiny and bendable
all the above
solid and hard
can conduct electricity
5
Iron was mixed with cereal. Why can I separate it with a magnet?
because it doesn't belong
I can use a magnet.
because it's magnetic
I can add milk and the iron will float.
6
What can be used to separate salt and water in a bowl?
magnet
hot plate
balance
funnel
7
How would you know if there was a
chemical change
?
all of the above
the change is not easily reversed
gas would be produced
the color would change
8
Physical properties can be________________ and ___________________.
measured and observed.
large and small.
touched and looked at.
liquid and gases.
9
What shows all the elements grouped by their weight and properties?
atoms
periodic table
physical change
compounds
10
2 or more
atoms
bonded together is called _____________?
answer 2 or 3
molecule
compound
atom
11
When molecules are transformed into another substance it is called ____________?
chemical reaction
physical reaction
compound
molecule
12
What is the
smallest
unit of an element?
compound
molecule
atom
chemical change
13
What is an atom?
a proton and neutron
the smallest part of an element
a molecule
water
14
What word is used when the size, shape, or phase of matter changes?
molecule
physical change
chemical change
compound
15
What has 2 or more different
elements
combined together?
atoms
periodic table
molecules
element
16
Which is an example of combining 2 metals?
aluminum
brass
lead
hydrogen
17
Which will result in a product with new
chemical properties
?
cutting wood
popping popcorn
ripping paper
breaking a mirror
18
After a
chemical reaction
it is easy to separate the original substances.
most of the time
true
I don't know
false
19
What do water, aluminum, trees, and a hawk all have in common?
They are all pure elements.
They are all living.
They are all made of cells.
They are all made of atoms.
20
A beaker is filled with blue liquid. How would you calculate the mass (weight) of the liquid?
subtract the weight of the beaker from the liquid
add the beaker and liquid's weight
multiply the weight of the liquid & beaker
double the weight of the beaker
