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