1
ATI Teas 7 Science Study
Guide (Nurse Cheung)
1. changes between states of matter - -Correct answer-condensation
= gas to liquid; molecules of the gas slow down and become
closer together
evaporation = liquid to gas; molecules of the liquid gain enough
energy to break away from the surface of the liquid
sublimation = solid to gas; molecules of the solid gain enough
energy to break away from the surface of the solid
deposition = gas to solid; molecules of the gas slow down and
become closer together
melting = solid to liquid; molecules of the solid gain enough
energy to break away from each other.
freezing = liquid to solid; molecules of the liquid lose enough
energy to stay together
2. empirical evidence - -Correct answer-information that is gathered
through observation and experimentation
3. qualitative evidence - -Correct answer-described in terms of quality
or characteristics
4. quantitative evidence - -Correct answer-described in terms of
quantity or amount
5. reliable evidence - -Correct answer-information that can be trusted
and is consistent
1
, 2
6. valid evidence - -Correct answer-information that accurately
represents what it is supposed to represent
7. placebo - -Correct answer-harmless substance that has no
therapeutic effect
8. independent variable - -Correct answer-variable that is being
tested and is not affected by other variables
9. controlled variable - -Correct answer-variable that is not being
tested and is held constant
10. scientific method - -Correct answer-First, identify a problem
or question.
Second, gather information about the problem or question.
Third, form a hypothesis, which is a possible answer to the problem
or question.
Fourth, design and conduct an experiment to test the hypothesis.
Fifth, analyze the data from the experiment and draw conclusions.
Sixth, communicate the results of the experiment.
11. proton - -Correct answer-particle with a single positive
charge
12. neutron - -Correct answer-neutron is a particle with no
electric charge
13. electron - -Correct answer-particle with a single negative
charge
2
, 3
14. isotopes - -Correct answer-atoms of the same element that
have a different number of neutrons
15. atomic mass - -Correct answer-atom is the total number of
protons and neutrons; Carbon-12 (number of 6 protons + the
number of 6 neutrons)
16. atomic number - -Correct answer-number of protons in an
atom
17. atoms charge - -Correct answer-more electrons than protons
= negative charge
more protons than electrons = positive charge
protons and electrons are equal = neutral
18. ions - -Correct answer-atoms that have gained or lost
protons, and as a result, have a charge either positive or negative
19. cations - -Correct answer-atoms that have lost one or more
electrons; positively charged ions
20. anions - -Correct answer-atoms that have gained one or
more electrons; negatively charged ions
21. periodic table - -Correct answer-columns = groups
rows = periods
22. orbitals - -Correct answer-s = 2
3
, 4
p=6
d = 10
f = 14
23. ionic bonds - -Correct answer-atoms trade electrons in order
to achieve stability
24. covalent bonds - -Correct answer-atoms share electrons in
order to achieve stability
25. electronegativity - -Correct answer-
26. matter - -Correct answer-anything that has mass and
occupies space
27. physical properties - -Correct answer-different properties of a
substance that can change their state without changing the
identity of the substance
28. states of physical properties - -Correct answer-mass =
amount of matter in an object; grams (g)
volume = amount of space an object occupies; liters (L)
density = mass of an object divided by its volume; grams per liter
(g/L)
29. phases of a substance - -Correct answer-temperature =
measure of the average kinetic energy of the molecules in a
substance; higher temperature = more energy and more space
they take up
4
ATI Teas 7 Science Study
Guide (Nurse Cheung)
1. changes between states of matter - -Correct answer-condensation
= gas to liquid; molecules of the gas slow down and become
closer together
evaporation = liquid to gas; molecules of the liquid gain enough
energy to break away from the surface of the liquid
sublimation = solid to gas; molecules of the solid gain enough
energy to break away from the surface of the solid
deposition = gas to solid; molecules of the gas slow down and
become closer together
melting = solid to liquid; molecules of the solid gain enough
energy to break away from each other.
freezing = liquid to solid; molecules of the liquid lose enough
energy to stay together
2. empirical evidence - -Correct answer-information that is gathered
through observation and experimentation
3. qualitative evidence - -Correct answer-described in terms of quality
or characteristics
4. quantitative evidence - -Correct answer-described in terms of
quantity or amount
5. reliable evidence - -Correct answer-information that can be trusted
and is consistent
1
, 2
6. valid evidence - -Correct answer-information that accurately
represents what it is supposed to represent
7. placebo - -Correct answer-harmless substance that has no
therapeutic effect
8. independent variable - -Correct answer-variable that is being
tested and is not affected by other variables
9. controlled variable - -Correct answer-variable that is not being
tested and is held constant
10. scientific method - -Correct answer-First, identify a problem
or question.
Second, gather information about the problem or question.
Third, form a hypothesis, which is a possible answer to the problem
or question.
Fourth, design and conduct an experiment to test the hypothesis.
Fifth, analyze the data from the experiment and draw conclusions.
Sixth, communicate the results of the experiment.
11. proton - -Correct answer-particle with a single positive
charge
12. neutron - -Correct answer-neutron is a particle with no
electric charge
13. electron - -Correct answer-particle with a single negative
charge
2
, 3
14. isotopes - -Correct answer-atoms of the same element that
have a different number of neutrons
15. atomic mass - -Correct answer-atom is the total number of
protons and neutrons; Carbon-12 (number of 6 protons + the
number of 6 neutrons)
16. atomic number - -Correct answer-number of protons in an
atom
17. atoms charge - -Correct answer-more electrons than protons
= negative charge
more protons than electrons = positive charge
protons and electrons are equal = neutral
18. ions - -Correct answer-atoms that have gained or lost
protons, and as a result, have a charge either positive or negative
19. cations - -Correct answer-atoms that have lost one or more
electrons; positively charged ions
20. anions - -Correct answer-atoms that have gained one or
more electrons; negatively charged ions
21. periodic table - -Correct answer-columns = groups
rows = periods
22. orbitals - -Correct answer-s = 2
3
, 4
p=6
d = 10
f = 14
23. ionic bonds - -Correct answer-atoms trade electrons in order
to achieve stability
24. covalent bonds - -Correct answer-atoms share electrons in
order to achieve stability
25. electronegativity - -Correct answer-
26. matter - -Correct answer-anything that has mass and
occupies space
27. physical properties - -Correct answer-different properties of a
substance that can change their state without changing the
identity of the substance
28. states of physical properties - -Correct answer-mass =
amount of matter in an object; grams (g)
volume = amount of space an object occupies; liters (L)
density = mass of an object divided by its volume; grams per liter
(g/L)
29. phases of a substance - -Correct answer-temperature =
measure of the average kinetic energy of the molecules in a
substance; higher temperature = more energy and more space
they take up
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