Science Flashcards

1
Q

What is the scientific method?

A

A systematic process for experimentation that is used to explore observations and answer questions.

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2
Q

What is the powerhouse of the cell?

A

Mitochondria

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3
Q

Who proposed the theory of evolution by natural selection?

A

Charles Darwin

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4
Q

What is the chemical symbol for gold?

A

Au

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5
Q

Multiple Choice: What is the primary gas found in the Earth’s atmosphere? (A) Oxygen (B) Nitrogen (C) Carbon Dioxide

A

B

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6
Q

What are the three states of matter?

A

Solid, liquid, gas

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7
Q

Fill in the blank: The force that attracts objects toward each other is called __________.

A

gravity

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8
Q

What is the pH scale used for?

A

To measure the acidity or alkalinity of a solution.

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9
Q

What is the most abundant element in the universe?

A

Hydrogen

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10
Q

What is Newton’s second law of motion?

A

Force equals mass times acceleration (F = ma).

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11
Q

True or False: Electrons have a positive charge.

A

False

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12
Q

What is the primary component of the Earth’s crust?

A

Silicate minerals

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13
Q

Multiple Choice: Which scientist is known for the laws of motion and universal gravitation? (A) Einstein (B) Newton (C) Galileo

A

B

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14
Q

What is the function of chlorophyll in plants?

A

To absorb light energy for photosynthesis.

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15
Q

What is the primary function of the nervous system?

A

To transmit signals between different parts of the body.

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16
Q

Fill in the blank: The process by which cells divide is called __________.

A

mitosis

17
Q

What is the most common type of rock in the Earth’s crust?

A

Igneous rock

18
Q

What is the role of the cell membrane?

A

To protect the cell and regulate what enters and leaves.

19
Q

What is the formula for calculating density?

A

Density = mass/volume

20
Q

Multiple Choice: What is the main component of the Earth’s atmosphere? (A) Oxygen (B) Nitrogen (C) Carbon Dioxide

A

B