What is happening to the temperature in New York City?

It is remaining about the same.

There is a pattern of increasing and decreasing.

What can you infer about the temperature for E.coli bacterial growth?

E. coli does not grow well at low and high temperatures.

E coli will continue to grow at very high temperatures.

E.coli grows best at very low temperatures

E.coli grows best at very high temperatures.

A biology class of 24 students decides to measure the height of each student and then calculate the average height for the class. Which of these is a possible source of error in this activity?

The accuracy of making and recording measurements

The number of males and females in the class

The difference in the ages of the students in the class

The total number of students in the class

Which of the following hypotheses is written correctly?

If a tennis ball is frozen, then it won't bounce as high as one that is not frozen.

Frozen tennis balls will not bounce as high.

If I heat up a tennis ball it will bounce high.

If I freeze a tennis ball, then it will not bounce as high.

Imagine that a scientist suggests that the size of an insect population depends on the temperature. What observations must this scientists make in order to collect evidence to support his or her theory or idea?

The scientist must observe the insect population throughout the year.

The scientist must observe the insect population only in summer.

The scientist must observe the insect population in the lab.

The scientist must observe the insect population in different areas.

Scientist communicate their results by publishing their work. Why is it important for scientist do this?

to compete with other scientist

so the experiment are not repeated

Scientist usually write reports about their investigations. Why do they do this?

to communicate their work to other scientists

During the phases of the Moon, the Moon appears to change shape. This change in appearance is due to the Moon...

reflecting a different amount of light due to alignment with Earth and the Sun.

physically changing size and shape.

moving closer and then farther away from Earth.

Why did people believe in the Geocentric vs the Heliocentric solar system?

all of these answers are correct.

Geocentric system had been around for a LONG time.

There wasn't enough proof to support the Heliocentric system.

a force of attraction between objects that is due to their masses

an unbalanced force that makes objects move in an elliptical path

the rotating cloud of gas and dust from which the sun and planets formed

the point in the orbit of a planet at which the planet is farthest from the sun

The distance between objects, along with the masses of the objects, affect the gravitational force between the objects. Which statement is true according to Newton’s law of universal gravitation?

When distance between objects increases, gravitational force decreases.

When the masses of objects increase, gravitational force decreases.

When distance between objects decreases, gravitational force decreases.

When the masses of objects decrease, the distance between objects decreases.

8th Grade Science Midterm Review

Authored by Kathy Sites

Science

6th - 9th Grade

NGSS covered

Used 308+ times

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73 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A hypothesis is often tested with a controlled _______

experiment

observation

theory

law

Tags

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A pattern or event in nature that is always true is what

scientific law

scientific theory

hypothesis

controlled experiment

Tags

NGSS.MS-PS2-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A possible explanation to a problem, that can be tested is what

observation

prediction

hypothesis

experiment

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The time it takes to run a mile depends on the persons running speed. Name a constant variable.

The persons running speed

Same track, same stop watch used, same people performing the experiment.

Same running speed and same track

The time it takes to run a mile

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The height of the bean plant depends on how much water they receive. What is the dependent variable?

Same amount of sunlight

Same soil and water

How much water they received

The height of the bean plant

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to perform multiple trials during an experiment?

It makes sure your results are more accurate

It fixes errors from the experiment

It allows you to keep track of your materials

It is not important to have multiple trials

Tags

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A__________ is a statement that can be tested, either by experiment or observation. It is sometimes written in an "if_then" format.

Hypothesis

Independent Variable

Testable Question

Theory

Tags

NGSS.MS-PS2-2

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8th Grade Science Midterm Review

A hypothesis is often tested with a controlled _______

A pattern or event in nature that is always true is what

A possible explanation to a problem, that can be tested is what

The time it takes to run a mile depends on the persons running speed. Name a constant variable.

The height of the bean plant depends on how much water they receive. What is the dependent variable?

Why is it important to perform multiple trials during an experiment?

A__________ is a statement that can be tested, either by experiment or observation. It is sometimes written in an "if_then" format.

In science, a dominant explanation supported by a very large amount of evidence is called a...

What is happening to the temperature in New York City?

The number of apples in this basket is ______________________ data?

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