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8th grade Nature of Science with Density Quiz Flashcards | StudBud
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8th grade Nature of Science with Density Quiz
8th grade Nature of Science with Density Quiz
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8th grade Florida Standards Density Quiz
Flashcards
60 cards
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Questions
60
Answers
1
A physicist wants to examine the characteristics of a new material. Which method will the physicist most likely use?
Observations of an Ecosystem
A Survey
Laboratory Experiments
Fieldwork
2
Dependent Variable? Trout raised in cold water weigh more than trout raised in warm water.
Fishy Fishy Fishy
Fishy Weight
Water Temp
That girl freaks me out.
3
What is volume?
The amount of space the atoms of an object take up
Da da da dat da dat da da da da ya da da da dat dat da ya da!
The amount of atoms in an object.
The thing on the radio that my Mom always turns down.
4
Dependent Variable? A lack of sleep can make you gain weight?
There is not an independent variable.
Look a doggo! Awwww he's cute.
Weight gain
Lack of sleep
5
What is the volume of an object with a density of 5g/ml and a mass of 20g?
100 ml
100 g
4 ml
4 g
6
In the early 1900's Alfred Wegener described continental drift. Which term describes continental drift?
Empirical Evidence
Law
Theory
Hypothesis
7
Which
best
describes an experiment?
Measuring the diameter of a certain type of tree in a forest
Measuring the rate at which a population of wild insects reproduces.
Measuring the speed of an eagle when it is hunting
Measuring the height of crops that receive different fertilizers
8
What is the difference between quantitative and qualitative?
Kahoots are fun.
They are the same.
Quantitative is numbers. Qualitative is descriptions.
Quantitative is descriptions. Qualitative is numbers.
9
How fast can you select the answer that contains the word ant?
Water, baking soda, spoon, annie, peas, wall, basketball
Soda, flour, bowl, dog, carrots, ceiling, another, soccer
Coffee, sugar, cup, ant, green bean, flooring, karate
Kool-aid, baking powder, cat, antenna, carpet, football
10
What must be true of any hypothesis for it to be useful in an investigation?
It must be developed without depending on prior investigations.
It must be used to develop a theory.
It must lead to further investigations.
It must be supported by data.
11
A scientist has found a new way to produce energy. Why is it important to replicate his results?
to include more people in the development of a new energy source
to make sure the scientist knows what they are doing
to confirm the results are valid and not the results of errors
to find ways to make the investigation easier
12
A cube has a height of 9 cm. The mass of the cube is 3,645 g. What is the density?
5 g/cm3
0.2 g/cm
729 cm
405 g/cm3
13
What is weight?
The gravitational pull on the mass of an object.
The amount of atoms in an object.
I should really study this stuff.
Gravity is fake, Weight is fake, but Unicorns, they are real!
14
Which of the following is an example of an inference?
The girl is running because she is late for school
A man is driving a green truck
The outside of the house is made of red brick
There is a crack in the wall of the restaurant
15
How would the density of a rock change if the rock was split in half?
It would be dependent on the type of rock you use.
The density would be twice as much because you have 2 pieces.
The density would be half as much because it is cut in half.
The density would remain the same.
16
Why is replication important in a scientific investigation?
To provide the same results to the same person during an investigation.
To provide a prediction about data results during investigations.
To ensure accuracy during an investigation.
To find inconsistencies during an investigation.
17
Which of the following is not a way that scientists ensure reliability in their experiments?
Scientists follow safe lab practices and proper equipment use.
Scientists perform the experiment before making a hypothesis.
Scientists make sure to follow all of the steps of the scientific method.
Scientists run multiple trials of the experiment to verify the results
18
What is a dependent variable?
Variable that changes in response to the indep variable. On the Y axis.
Wow I should really know this.
Kermit looks disappointed. I sure hope he is not disappointed in me.
Variable that is changed on purpose. It is on the X axis.
19
Zoe heats a sample of a solid until it melts. Which is an example of replication related to her experiment?
Emma lets the sample cool and then heats it again.
Capra and Lily heat an identical sample to see if it melts at the same temp
Barbara continues to heat the sample until it is a gas.
Emily heats a different sample with the same mass until it melts.
20
Dependent Variable? Tomato plants grown with music have more tomatoes.
Bob? Bob the Tomato?
Hey, that's Bob the Tomato!
Amount of tomatoes
Music
21
Independent Variable? A lack of sleep can make you gain weight?
Weight gain
Lack of sleep
There is not an independent variable.
Look a doggo! Awwww he's cute.
22
What is a scientific model? More than one answer!
A science based fashion show. Miss Frizzle had a career change.
A representation of something that is too big, too small or too expensive
The only model that can be created is that of Jupiter.
A real phenomenon that cannot be observed directly.
23
Which step below is repetition?
Step 3
Step 4
Step 1
Step 2
24
Which of the following is an example of an observation?
An ice cube feels cold to the touch
The girl's favorite subject is science.
The baby is crying loudly because she is hungry
It is raining outside, so there must be a cold front moving through
25
Clara does an experiment. Her results do not agree with her hypothesis. Why is this information still valuable?
Clara has to accept the results with no proof.
Clara should repeat the experiment, because there is no way she is wrong.
It is not valuable. This is a false statement.
Any data is good data. She now knows what doesn't work.
26
How does our current model of an atom differ from Bohr's model?
The electrons differ
Both the electrons and the nucleus differ from Bohr's model.
They are the same model.
The nucleus differs
27
What is the formula for the volume of an irregular object?
V2 / V1
V2 - V1
V2 x V1
V2 + V1
28
Why did scientists decide to classify organisms into more groups?
Few organisms have gone extinct in recent years.
Scientists continue to learn more about living things.
Scientists invent new organisms that need to be classified.
More organisms exist now than 300 years ago.
29
Cassidy goes to the park at 5pm for 7 days. She takes notes on the birds she sees. What process does this represent?
Replication
Reproduction
Repetition
Repurposing
30
Independent Variable? Tomato plants grown with music have more tomatoes.
Bob? Bob the Tomato?
Amount of tomatoes
Hey, that's Bob the Tomato!
Music
31
What is density?
The amount of atoms in an object.
Dog
The amount of space atoms take up.
The amount of atoms in an object AND the amount of space those atoms take
32
Ask a question, form hypothesis, experiment, analyze results....what's next?
Select equipment
Draw a conclusion
Identify the variables
Develop a theory
33
What is mass?
The average kinetic energy of an object.
The amount of atoms in an object
Heavy stuff
The volume times the density
34
What are the three states of matter? Pick all three!!!
Gas
Water
Solid
Ice Ice Baby
Cats are liquid and Polar Bears are cool.
Liquid
35
What are the 3 things that are not made up of matter?
Shiny, Warm, Loud
Colors are pretty
Look Blythe! It's Sponge Bob!
Light, Heat and Sound
36
What is the formula for the volume of a regular object?
L x L x L
L x W x H
Add all the sides and multiply by 4.
Add the sides, multiply by 2, divide by 3.14
37
What are three ways we can measure matter? Pick 3!
Multiply something together
Density
Pick it up and compare it to other things.
Measure it
Volume
Mass
38
Which
best
explains why scientists accept the theory of relativity as a valid scientific theory?
Scientists believe what is agreed upon by the majority of scientists.
Scientists recognize that Albert Einstein was the GOAT.
Scientists found an example of when it is true.
Scientists are able to explain many natural events by applying the theory.
39
What is the density of an object with a mass of 50 g and a volume of 20 mL?
Don't pick this one, it's not the answer. You may want to, but don't.
0.4 g/mL
1000g/mL
2.5 g/mL
40
Which of the following hypothesis would NOT be tested using a controlled experiment?
The use of fertilizer increases the growth of grass.
An increase in temp will cause an increase in bee population.
Acid rain causes erosion in rocks than non-acid rain.
A geologist questions how the Grand Canyon was formed.
41
What is the volume of the irregular shaped object?
75ml
135ml
60ml
25ml
42
Which statement about scientific method is true?
The scientists will include multiple trials of every experiment.
The scientists always publish their conclusions in scientific journals.
The scientific method rarely involves data collection.
Steps of the scientific method can be skipped. They are just suggestions
43
Scientists use a computer model that takes into account any factors that can change on an island. What is true?
The program will allow scientists to stop climate change.
The program will be useless because it includes too many factors.
The program will provide exact information about the future of the island.
The program will help scientists predict changes on the island.
44
Independent Variable? Trout raised in cold water weigh more than trout raised in warm water.
Water Temp
Fishy Weight
Fishy Fishy Fishy
That girl freaks me out.
45
Which science principle explains the way the world works? (Usually in a statement form)
Scientific law
Empirical Evidence
Scientific theory
Scientifically testable
46
Which science principle describes the way the world works? (Usually in a statement form)
Scientific law
Empirical Evidence
Scientifically testable
Scientific theory
47
Which is
true
about the scientific theory of evolution?
It was proved what most scientists believed at the time.
It had no significant impact on scientific thought and society.
It was accepted by all scientists without question.
It was developed using large amounts of empirical evidence.
48
Which of the choices below could be the hypothesis in an experiment?
Tomato plants require 8 hours of direct sunlight to grow
Plant a tomato seedling 6 inches deep a large pot
If tomato plants receive 4 hours of direct sunlight, then they will thrive
How much sunlight do tomato plants need to thrive?
49
What determines whether an object floats or sinks in water.
If it is magical
Density is fake. Unicorns are real and the Sun revolves around the Earth.
If it is more or less dense than water. (1 g/mL)
Wow, it would be really embarassing if someone picked this one.
50
What is the Volume of this object?
10 cm2
40 cm3
Math
60 cm
51
What is matter?
I don't know, what's a matter with you? Please don't pick this one....
Stuff
Anything that has mass and takes up space.
The mass of an item divided by the volume.
52
If we raise the temp of water to find out if the amount of salt mixed in changes. What is the independent variable?
The amount of salt that mixes in the water
The amount of the water in the sample
The type of salt that mixes in the water
The temperature of the water
53
What is an independent variable?
The variable that is the result. It is on the Y axis.
Big Bird is spinning in a chair. He must be getting dizzy.
The variable that is changed by the scientist. Found on the X axis.
It is a strong human who can take care of themselves and can ask for help.
54
Which is a scientific question that can be tested?
What is electricity?
Which is the nicest color for rose plants?
Does water heat up more quickly than sand in sunlight?
How many pine trees are in a tundra forest?
55
Karis find that adding a chemical to cells it creates a protein that humans need to stay healthy. What should she do now
Repeat the experiment to see if she gets the same results.
Hold a press conference about how smart she is
Publish her findings in a scientific journal
Destroy the experiment so that no one knows about it
56
What is
true
about scientific laws?
Scientific laws are the same thing as facts.
Laws are the foundation of scientific theories.
Laws can explain a wide range of events.
Laws can change in light of new evidence.
57
What is the equation and units for density?
MV divided by 2 and g/mL
MV and g or mL
M/V and g or mL
M/V and g/mL or g/cm3
58
What are the steps of the scientific method? (In order)
Uh - I have been ignoring this since 5th grade.
Question, Hypothesis, Analyze, Share, Research, Experiment, Conclusion
Share, Conclusion, Analyze, Experiment, Hypothesis, Research, Question
Question, Hypothesis, Research, Experiment, Analyze, Conclusion, Share
59
True or False: If an ice cube is placed on a stove and melts, its density will change.
True
False
Why would you pick this one?
The options are true and false, but I belieive it is something different.
60
The graph shows the number of people who visited doctors because of flu-like illnesses. What can you conclude about it?
The severity of flu-like symptoms decreased in 2008-2009
Scientists can predict the number of illnesses will decrease in 2009-2010.
The number of flu-like illnesses did not peak at the same times
Flu-like illnesses follow a steady pattern throughout the year.
