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Unit 1 Review- The Nature of Science 8D Flashcards | StudBud
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Unit 1 Review- The Nature of Science 8D
Unit 1 Review- The Nature of Science 8D
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1.1 What is Science 1.2 Types of Investigations 1.3 Using Models
Flashcards
22 cards
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Practice quiz
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Questions
22
Answers
1
A model of an onion cell uses a scale of 500:1. The model is 15 cm long. How long is the cell in real life?
7500 cm
0.002 cm
33 cm
0.03 cm
2
Which statement is a hypothesis?
Most of the earthworms moved to the shaded area during the experiment.
The earthworms must all be the same species.
If an earthworm is given a choice, it will move toward darkness not light.
Do earthworms prefer bright light or darkness?
3
Which type of investigation involves looking for ways that two or more things are alike and different?
Descriptive investigation
Controlled investigation
Comparative investigation
Experimental investigation
4
If a scientist gets unexpected results during the first trial of an experiment, what should he or she do next?
Reject the scientific theory not supported by the results.
Repeat the experiment to be sure the results are valid.
Change the data to match expectations.
Publish only the expected data.
5
Smita is testing how a paper airplane's shape impacts it's flight. Which action is the result of her
logical reasoning
?
She decides to perform the experiment outside on a windy day.
She decides to use the same type of paper for each airplane.
She follows her procedure carefully.
She records only the data that support her favorite hypothesis
6
What is the
responding
variable
in this experiment?
The color of the apple wedges after 1 hour
The liquid the apple wedges were dipped in
The lemon juice applied to one of the apple wedges
The size of the apple wedges
7
As scientists learned about atoms, their models have changed. What are
two
limits of using a marble to model an atom?
The model is not made of commonly available materials or objects.
The model is much harder to see than a real atom.
The model does not move or behave like a real atom.
The model does not show the true size of an atom.
8
Which statement best describes the use of the
balloons
in this experiment?
It is imaginative, because it makes the experiment feel like a party.
It is creative, because it allows the student to choose different colors
It is logical, it allows the student to catch the invisible gases.
It is biased, because it means that not all the variables are controlled
9
Which problem does this model of the solar system solve?
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.
The real-life solar system is too small to see with ordinary equipment.
The real-life solar system is too small when viewed through a telescope.
10
Which evidence could have helped disprove the geocentric theory and lead to the development of the heliocentric theory?
Objects in the sky appear to revolve around Earth each day.
Earth's moon appears larger in the sky than the Sun.
The moons of the planet Jupiter are observed revolving around Jupiter.
The planet Earth appears to be a stationary point in space.
11
Which
two
statements describe a claim that is based on science?
It is based on a long tradition.
It is based on personal bias.
It is based on logical reasoning.
It is based on empirical evidence.
12
What is one way the teacher could
replicate
this experiment?
Repeat the experiment in a darkened room.
Repeat the experiment using liquids other than lemon juice and water.
Repeat the experiment using fruits other than apples.
Repeat the experiment on 10 more apples.
13
Which statement is a hypothesis these students might be using in their experiment?
If a car goes down different ramps, it will roll faster down the steepest
Will a toy car roll faster down a steeper ramp?
This experiment tests how speed changes with the steepness of the ramp
It's fun to see how fast the cars roll down the steepest ramps.
14
What type of investigation would try to see if earthworms prefer rough or smooth surfaces?
comparative
experimental
controlled
descriptive
15
Why is publishing results important in science?
It allows others to evaluate the results.
It turns hypotheses into scientific laws.
It adds bias to experimental data.
It lets scientists show off their imaginations.
16
Which of these is important to gathering and interpreting scientific information?
religion
logic
emotion
legend
17
Which
two
characteristics are limitations of the student's model?
The model is much smaller than a real river.
The model is missing plants, fish, and other details found in a real river.
The model river water flows downhill instead of uphill like a real river.
The model soil is nothing like the soil found in a real riverbed.
18
In the model, the door is 3 cm tall. If the scale is 1:42, how tall should the real tree house door be?
14 cm
126 cm
45 cm
39 cm
19
Which statement is a
scientific
claim?
Orion is the easiest constellation to recognize because of the three stars
The three stars in the constellation Orion look like a belt.
Observations of constellations show that stars have moved over time.
Observations of certain stars explain why humans behave the way they do.
20
What kind of model is shown?
Mathematical
Physical
Computer
Conceptual
21
Which of these are part of a scientific way of gathering information?
investigations
opinions
religious beliefs
fairy tales
22
Using newly developed telescopes to find more proof for the big bang theory is an example of which process?
Using new technology to replace outdated theories with new ideas
Using new technology to provide additional supporting data
Using imagination to spark new ideas
Using new data to modify an existing scientific theory
