What is Science? Flashcards

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1
Q

What is the definition of science?

A

A body of evidence-based knowledge gained through observation and experimentation related to the natural world and technology.

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1
Q

What are the goals of science?

A

To provide explanations for events in the natural world, to understand patterns in said explanations, and to make predictions about natural events.

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2
Q

What is the scientific method?

A

A way of solving problems that uses a set of steps to make sure your answer is accurate and based on evidence.

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3
Q

What is the first step in the scientific method?

A

Observation and asking questions.

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4
Q

What is the second step in the scientific method?

A

Making inferences and forming a hypothesis.

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5
Q

What is the third step in the scientific method?

A

Conducting a controlled experiment.

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6
Q

What is the fourth step in the scientific method?

A

Collecting and analyzing data.

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7
Q

What is the fifth step in the scientific method?

A

Drawing conclusions.

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8
Q

What is the definition of observation?

A

Act of noticing and describing events and processes in a careful, orderly way.

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9
Q

What is the definition of an inference?

A

Logical interpretation based on what is already known.

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10
Q

What is the definition of a hypothesis?

A

A statement that explains our observation.

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11
Q

What statement is commonly used in the scientific method?

A

An “if… then…” statement.

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12
Q

What three things must a hypothesis have?

A

What you are measuring, what you’re changing, and what you think will happen.

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13
Q

What is the definition of a controlled experiment?

A

An experiment when only one variable is changed and all other variables are kept constant or unchanged (ex. Temp., light, time, availability of nutrients).

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14
Q

What is a dependent variable?

A

Measured, y axis.

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15
Q

What is an independent variable?

A

Manipulated, experimenter changes, x axis, a change in the independent variable changes the dependent variable.

16
Q

What is a control group?

A

The portion of the experiment that has nothing changed.

17
Q

What is the experimental group?

A

The portion of the experiment that has the independent variable (manipulated variable).

18
Q

What are the two types of data?

A

Quantitative and qualitative.

19
Q

What is qualitative data?

A

Descriptive and involves characteristics that cannot usually be counted (ex. Colors of plants, direction of growth).

20
Q

What is quantitative data?

A

Numbers obtained by counting or measuring (ex. Height of plants, weight, number of plants).

21
Q

Can anything in science be completely proven or disproven?

A

No. Science is tentative.

22
Q

What do scientists use experimental data for?

A

To support, refute, or revise the hypothesis being tested, and to draw a valid conclusion.

23
Q

What do you need to remember?

A

Label everything!!!