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8th Grade: What is Science? Flashcards | StudBud
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8th Grade: What is Science?
8th Grade: What is Science?
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Chapter 1 Review
Flashcards
42 cards
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Questions
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Answers
1
Classifying is:
the process of grouping like items together
making a forecast about a future event
is creating representations of complex objects
explaining the things you observe
2
In an experiment, the one variable that is changed is called the
controlled variable
experimental variable
dependent variable
independent variable
3
A scientific law is when a scientist will get the same result, every time, under same condition
True
False
4
Which of the following is NOT a precaution that should be taken to stay safe in the laboratory?
Wear sandals or open-toed shoes
Wear safety goggles to protect your eyes
Make sure electrical cords are untangled and out of the way
Keep your work area clean
5
Run an experiment many times to make sure results are consistent. What does "consistent" mean?
Unchanging
Obvious
Perfect
Testable
6
The statement that all objects in the universe attract each other is known as the
Theory of gravity
Law of gravity
Variable of gravity
Hypothesis of gravity
7
Which question would be the best high level scientific question?
Does the amount of salt in H2O affect the temp it boils?
Who made the first microscope?
How many giraffes live in Africa?
How long ago did dinosaurs live on the Earth?
8
What's the difference between a hypothesis and a theory?
Hypothesis can't be proven, theories can.
Theories have been proven with tests, hypothesis haven't
Theories have many hypotheses; a hypothesis has one theory
"Theory" = "fact"; "Hypothesis" = "Guess"
9
In an experiment to find the temp at which beans sprout the fastest, what is the variable?
The temperature at which the beans are kept
The height the sprouts grow
The amount of water you give the beans
The number of beans you plant
10
Which of the following hypotheses is written correctly?
If I freeze a tennis ball, then it will not bounce as high.
If a tennis ball is frozen, it won't bounce as high
If I heat up a tennis ball it will bounce high.
Frozen tennis balls will not bounce as high.
11
All the things in an experiment that must be the same to make it fair are called
dependent variables
Controlled variables or constants
independent variables
controlled experiments
12
A scientific theory does not rely on multiple test to be supported.
True
False
13
Physical science is the study of matter, energy, and the changes they undergo.
False
True
14
Which of the following is NOT a scientific attitude?
Curiosity
Unimaginative
Honesty
Skepticism
15
What if you test a hypothesis multiple times and the data doesn't support your prediction?
Conclude that your hypothesis cannot be proven
Run the experiment again until you get the data you want
Re-think your hypothesis
Change the data to support your predictions
16
A student makes an observation that a colorless solution turns blue. This is a(n)
inference
qualtitative observation
hypothesis
quantitative observation
17
The study of matter and energy and how they interact is called
Inferring
Predicting
Chemistry
Physics
18
In science, an educated guess is called a/an
question
hypothesis
observation
conclusion
19
In which step of the scientific method do we want to use graphs
finding the problem
analyze data
make a hypthesis
Make observations
20
The process of obtaining information by using the senses is called a/an
scientific method
inquiry
observation
conclusion
21
Which of the following is NOT a rule when writing a hypothesis?
It is a prediction
It should restate the question
It is testable
It is an if/then statement
22
Which of the following is NOT a procedure that should be taken after a lab is finished?
Dispose of any wastes in the proper place
Wash your hands thoroughly
Clean the work area
Leave equipment plugged in
23
When you decide whether or not the data supports the original hypothesis, you are
forming a hypothesis
making an obsersvation
drawing a conclusion
asking questions
24
A scientific model represents something we cannot directly observe
True
False
25
"The scientific method is an analytic process," what's the best synonym for "analytic?"
Amazing
Probable
Incoherent
Logical
26
In an experiment, the factor that we measure is called the
controlled variable
independent variable
conclusion
dependent variable
27
Which of the following observations is an example of a quantitative observation?
Noticing that a ball is round
Noticing that milk tastes sour
Measuring your height
Seeing that a car is moving
28
Which is NOT a precaution that should be taken to stay safe when doing science activities?
Always tell an adult where you will be
Dress appropriately
Prepare ahead of time
Carry out experiments alone so people won't get in the way.
29
What must you do before you make a hypothesis?
Draw a conclusion
Make Observations
Form a theory
Run an experiment
30
What skill is a scientist using when she listens to the sounds that whales makes.
Making obervations
Drawing conclusions
Making a hypothesis
Interpreting data
31
Experiment that tests one factor at a time by comparing a control group with experimental group
a controlled experiment
A theory
an independent variable
A dependent variable
32
A scientific procedure to make a discovery, test a hypothesis, or demonstrate a known fact is
an experiment
a theory
a law
a hypothesis
33
Good preparation helps you stay safe in the lab while doing science activities.
True
False
34
A series of steps designed to help you solve problems and answer questions
hypothesis
scientific method
experiment
observation
35
Place steps in the correct order: A) Recognize Problem, B) Test hypothesis, C) Draw Inference
C, B, A
A, C, B
B, A, C
A, B, C
36
Using the scientific method, what can you conclude about the theory of evolution?
There is very little evidence to support it
Scientists don't need to test it anymore
No one is allowed to test whether it is true or not
It's been tested many times
37
Inferring is
creating representations of complex objects
the process of grouping together like items
When you explain or interpret what you observe
making a forecast of what will happen in the future
38
Predicting means
making a forecast of what will happen in the future
learning about the natural world by gathering information
Explaining your observations
using one or more of your senses to gather information
39
Which of the following is a testable hypothesis?
A plant needs at least 5 hours of sunlight a day to grow
Humans will someday land on Mars
Roses are more beautiful than violets
Ice cream is delicious
40
What might cause a theory to change over time?
New laws passed by the government
Changes in public opinion
The discovery of new evidence
New but untestable ideas
41
The two branches of Physical Science we will be studying in Physical science are:
Physics
Chemistry
Astronomy
Geology
42
Which of the following things is NOT an example of a model?
A globe
A diagram
A chimpanzee
A map