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Matter
Matter
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6th grade science test review.
Flashcards
25 cards
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Questions
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Answers
1
Which process changes matter into one or more new substances with new properties?
Chemical Change
Boiling
Physical Change
Freezing
2
2 or more atoms of different elements can bond together to form a single unit called a(n)
Molecule
Element
Chemical
Mixture
3
Which sub-atomic particles have a negative charge?
Protons
Decepticons
Neutrons
Electrons
4
Which sub-atomic particles are found in the nucleus of an atom?
Protons
Energy Levels
Molecules
Electrons
5
Which is not an element?
Gold
Water
Carbon
Oxygen
6
How many neutrons are in one atom of Beryllium?
4
9
14
5
7
A reaction that feels hot because it released energy in the form of heat is described as . . .
Conserved
Exothermic
Unbalanced
Endothermic
8
The Law of Conservation of Mass says
Matter cannot be seen or heard during a chemical reaction.
Matter cannot be easy or hard during a chemical reaction.
Matter cannot be created or destroyed during a reaction.
Matter cannot be broken or repaired during a reaction.
9
One example of a chemical change is . . .
Burning gasoline in an engine
Crushing a can.
Boiling Water
Cutting paper
10
How many atoms does a molecule of C
3
H
8
have?
8
11
3
24
11
How many neutrons are in the element potassium (K)?
40
39
19
20
12
Sugar water is a(n). . .
Mixture
Atom
Element
Compound
13
Water vapor in the air turns to liquid water in the form of rain. This is an example of
Chemical equation
Physical change
Chemical change
Chemical formula
14
In chemistry, the periodic table shows that elements are represented by . . .
Ratios
Symbols
Formulas
Pictures
15
An element's atomic number is the same as. . .
How many neutrons are in the nucleus
How many protons plus neutrons are in the nucleus
The order it was discovered
How many protons are in the nucleus
16
Anything that has mass and takes us space is. . .
A Chemical Change
Matter
A mixture
Energy
17
One example of a physical change is
Frying Eggs
Mixing powdered drink mix to make lemonade
Rusting an iron nail
Burning Paper
18
How many electrons are in one atom of Zinc?
14
65
30
35
19
How many neutrons does an atom of Hydrogen have?
1
0
4
6
20
Which is NOT a sign of a chemical reaction?
Heat
Color change
Phase change from gas to liquid
Fizzy bubbles
21
Since water can't be physically broken down into its component parts it is a(n). . .
mixture
atom
element
compound
22
How many protons are in Nitrogen?
7
14
21
15
23
The atomic mass of an element tells you. . .
How many electons + neutrons an atom has.
How many protons + neutrons an atom has.
How many neutrons an atom has.
How many electrons an atom has.
24
A temperature drop that occurs when mixing 2 substances most likely indicates that . . .
No reaction has occurred.
An exothermic reaction has occurred.
An endothermic reaction has occurred.
A physical change has occurred.
25
Which of the following is a basic unit of matter?
Element
Molecule
Atom
Compound
