Which statement is a scientific claim?

Observations of constellations show that stars have moved over time.

Which statement is a hypothesis these students might be using in their experiment?

If a toy car is rolled down ramps of different steepness, it will roll fast

Smita is experimenting with how a paper airplane's shape affects the distance it will fly. Which action is the result of

She decides to use the same type of paper for each airplane.

Using radio telescopes, astronomers have found evidence that ... This work is part of which process of scientific method

Using new technology to provide additional supporting data

Which statement is a hypothesis?

If an earthworm is given a choice, it will move toward darkness rather than

Why is publishing results important in science?

It allows others to evaluate the results.

Which statement is a scientific claim?

Observations of constellations show that stars have moved over time.

After 1 hour, only the wedge that had been dipped in lemon juice was still yellow and the others brown. What is the DV?

The color of the apple wedges after 1 hour

Which two statements describe a claim that is based on science?

It is based on logical reasoning. and It is based on empirical evidence.

If a scientist gets unexpected results during the first trial of an experiment, what should he or she do next?

Repeat the experiment to be sure the results are valid..

Which problem does this model of the solar system solve?

The real-life solar system is too large to fit in a laboratory.

Which evidence could have helped disprove the geocentric theory and lead to the development of the heliocentric theory?

The moons of the planet Jupiter are observed revolving around Jupiter.

If a scientist gets unexpected results during the first trial of an experiment, what should he or she do next?

Repeat the experiment to be sure the results are valid.

Why is publishing results important in science?

It allows others to evaluate the results.

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Unit 1 Review-APEX

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Questions 21

Answers

1
Which statement is a scientific claim?
Observations of certain stars explain why humans behave the way they do.
Observations of constellations show that stars have moved over time.
The constellation Orion is the easiest to recognize because of the stars in
Three stars in the constellation Orion look like a belt that a hunter might
2
Which statement is a hypothesis these students might be using in their experiment?
This experiment tests how the speed of a toy car changes with the steepness of the ramp.
If a toy car is rolled down ramps of different steepness, it will roll fast
Will a toy car roll faster down a steeper ramp?
It's fun to see how fast the cars roll down the steepest ramps.
3
Smita is experimenting with how a paper airplane's shape affects the distance it will fly. Which action is the result of
She decides to use the same type of paper for each airplane.
She decides to perform the experiment outside on a windy day.
She follows her procedure carefully.
She records only the data that support her favorite hypothesis.
4
What kind of model is shown?
Computer
Mathematical
Physical
Conceptual
5
Which type of investigation involves looking for ways that two or more objects, events, or processes are alike different
Experimental investigation
Controlled investigation
Comparative investigation
Descriptive investigation
6
The scale is 500:1. The student's cell model has a length of 15 cm and what is the length of the real cell?
7500 cm
0.002 cm
0.03 cm
33 cm
7
Using radio telescopes, astronomers have found evidence that ... This work is part of which process of scientific method
Using new data to modify an existing scientific theory
Using imagination to spark new ideas
Using new technology to provide additional supporting data
Using new technology to replace outdated theories with new ideas
8
Which of these are part of a scientific way of gathering information?
Investigations
Fairy tales
Opinions
Religious Beliefs
9
Which statement is a hypothesis?
If an earthworm is given a choice, it will move toward darkness rather than
Do earthworms prefer bright light or darkness?
The earthworms must all be the same species.
Most of the earthworms moved to the shaded area during the experiment.
10
The scale is 1:42. In the scale model, the tree house door is 3 cm tall and how tall is the real tree house door?
126 cm
45 cm
14 cm
39 cm
11
Why is publishing results important in science?
It allows others to evaluate the results.
It adds bias to experimental data.
It turns hypotheses into scientific laws.
It lets scientists show off their imaginations.
12
Which statement is a scientific claim?
Three stars in the constellation Orion look like a belt that a hunter might
Observations of certain stars explain why humans behave the way they do.
Observations of constellations show that stars have moved over time.
The constellation Orion is the easiest to recognize because of the stars in
13
After 1 hour, only the wedge that had been dipped in lemon juice was still yellow and the others brown. What is the DV?
The liquid the apple wedges were dipped in
The color of the apple wedges after 1 hour
The lemon juice applied to one of the apple wedges
The size of the apple wedges
14
Which of these is important to gathering and interpreting scientific information?
Legend
Logic
Emotion
Religion
15
A group of students is setting up a test to see whether earthworms prefer rough or smooth surfaces. What type of model?
Physical
Conceptual
Computerize
Comparative
16
Which two statements describe a claim that is based on science?
It is based on logical reasoning. and It is based on personal bias.
It is based on empirical evidence. and It is based on empirical evidence.
It is based on logical reasoning. and It is based on empirical evidence.
It is based on a long tradition. and It is based on personal bias.
17
If a scientist gets unexpected results during the first trial of an experiment, what should he or she do next?
Publish only the expected data.
Reject the scientific theory not supported by the results.
Change the data to match expectations.
Repeat the experiment to be sure the results are valid..
18
Which problem does this model of the solar system solve?
The real-life solar system is too small when viewed through a telescope.
The real-life solar system is too small to see with ordinary equipment.
The real-life solar system is too large to fit in a laboratory.
The real-life solar system is too fragile to manipulate by hand.
19
Which evidence could have helped disprove the geocentric theory and lead to the development of the heliocentric theory?
B.Objects in the sky, including the Sun, appear to revolve around Earth on a daily cycle.
The moons of the planet Jupiter are observed revolving around Jupiter.
The planet Earth appears to be a stationary point in space.
Earth's moon appears larger in the sky than the Sun.
20
If a scientist gets unexpected results during the first trial of an experiment, what should he or she do next?
Repeat the experiment to be sure the results are valid.
Reject the scientific theory not supported by the results.
Publish only the expected data.
Change the data to match expectations.
21
Why is publishing results important in science?
It adds bias to experimental data.
It allows others to evaluate the results.
It lets scientists show off their imaginations.
It turns hypotheses into scientific laws.

Unit 1 Review-APEX Flashcards | StudBud