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FINALS AKA DEATH TIME > PHYSICAL SCIENCE IDK WHATS GOING ON > Flashcards

PHYSICAL SCIENCE IDK WHATS GOING ON Flashcards

1
Q

the variable that changed during the experiment

A

independent variable

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2
Q

the variable that is measured after the experiment

A

dependent variable

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3
Q

group that is not subjected to the changes in the independent variable

A

control group

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4
Q

a variable that stays the same

A

constant

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5
Q

physical science is the study of ________/

A

energy and matter

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6
Q

5 steps of the scientific method:

A
  1. Identify a problem
  2. Write a hypothesis
  3. Design an experiment
  4. Do it
  5. Evaluate results
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7
Q

Is this an observation or an inference: The liquid smells like peaches

A

observation

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8
Q

Is this an observation or an inference: The metal is hard therefore it must be iron

A

inference

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9
Q

Is this a physical change or a chemical change: Water evaporating from a pool

A

physical

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10
Q

Is this a physical or chemical change: Firecrackers exploding

A

chemical

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11
Q

the smallest particle of a substance that makes the properties of that substance

A

element

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12
Q

two or more atoms chemically combined (NaCl)

A

compound

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13
Q

A physical combination of two or more substances

A

mixture

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14
Q

Identify the following as solution, suspension, or colloid:

  1. Milk
  2. Vinegar
  3. Fog
  4. Soda Pop
  5. Oil and water salad dressing
  6. Jello with fruit
  7. Cherry Crystal Light
  8. Extra Pulpy Grapefruit Juice
  9. Cherry coke
A
  1. Colloid
  2. Solution
  3. Colloid
  4. Solution
  5. Suspension
  6. Suspension
  7. Suspension
  8. Suspension
  9. Solution
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15
Q

a homogenus mixture in which the solute is distributed through the solvenant

A

solution

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16
Q

scatters light

A

colloid

17
Q

a reversible change in physical properties

A

physical change

18
Q

change that results in formation of new chemical substances

A

chemical change

FINALS AKA DEATH TIME (1 decks)

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