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WorksheetsA.L. - Physical Science Unit 1 Wrap Up
Total questions: 40
Worksheet time: 22mins
Science has some limitations: It can be used to answer only certain types of questions.
Look at the photo.
Which three questions that the student might be asking can be answered using science?
What chemicals were in the food of the chicken that laid this egg?
Should I have an egg for breakfast, or oatmeal?
How many eggs can a chicken lay in one day?
How strong is the shell that covers an egg?
Is it wrong to eat a chicken egg?
Which activities are ways that scientists gather information? (Select all that apply.)
Measure objects
Take photos
Draw pictures
Collect samples
Check Tik Tok
Which activities are ways that scientists gather information? (Select all that apply.)
Make videos
Time events
Make it up
Make sound recordings
Check their horoscope
Imagine you check the Internet for information about whether a medicine is safe to take. You find a website that states the medicine is indeed safe. Which of the following could be evidence on the website that the information is reliable?
Ten people who bought and took the drug are quoted as saying the drug is safe.
There is a link to a study on the medicine, and the study was published in a scientific journal.
There is a picture of a doctor who recommends the product.
There is nothing said about a study published in a peer-reviewed journal.
Read the passage about the heliocentric theory. Which two characteristics are most likely true of this explanation of natural events?
The heliocentric theory is a scientific theory. It explains that planets orbit the Sun at the center of our solar system. This theory formed as scientists gathered data about the movement of planets and stars.
It is supported by the observations of many different scientists.
It has not yet been confirmed by evidence.
It explains many related natural events.
It applies to only one specific situation.
Which of the following is an SI unit for length?
gram (g)
milliliter (m)
kilometer (km)
Kelvins (K)
Which of the following is an SI unit for mass?
gram (g)
milliliter (m)
kilometer (km)
Kelvins (K)
Which of the following is an SI unit for temperature?
gram (g)
milliliter (m)
kilometer (km)
Kelvins (K)
Which of the following is an SI unit for volume?
gram (g)
milliliter (m)
kilometer (km)
Kelvins (K)
You need to find the area of a new rug for your bedroom. The length of the rug is 2.50 m. The width is 1.50 m.
What is the area of the rug?
4 m2
3.75 m3
1 m2
3.75 m2
An insect crawls 4 m east along a hiking path in
20 seconds, and then a bird swoops down and eats it. What was the insect's velocity?
0.2 m/s east
0.2 m/s
80 m/s east
80 m/s
0.2 m/s west
Look at the picture.
If Dedra has a mass of 50 kg, where would she weigh the most?
Moon
Sun
Earth
Look at the picture.
How do you think Dedra's mass would change if she were to travel to the Moon?
Her mass would decrease.
Her mass would increase.
Her mass would stay the same.
The formula for converting from kelvins (K) to degrees Celsius (°C) is:
°C = K – 273
Using this formula, convert 400 K to degrees Celsius.
673°C
–673°C
127°C
–127°C
Write 0.00000214 using scientific notation
2.14 x 106
2.14 x 10−6
214 x 10−8
214 x 108
Read the passage. Then select the statement that represents the best hypothesis for an experiment.
A food scientist is designing an experiment about the factors that affect the taste of fruits. He's struggling with how he should write the hypothesis. These are some of the ideas he came up with:
If a fruit has more than 2 grams of sugar per kilogram of mass, then people who taste it will think it tastes sweet.
The sugar naturally found in fruit is what makes it taste sweet.
A fruit that has lots of sugar in it tastes more delicious than a fruit that has less sugar.
All people who eat fruits think that eating sugar is healthy.
These students are experimenting with how cars move down ramps of different heights. Use what you've learned about variables to choose the correct answer.
The ramps in the experiment are all set to different heights. This is the _____________________.
constant
manipulated variable
responding variable
These students are experimenting with how cars move down ramps of different heights. Use what you've learned about variables to choose the correct answer.
The cars in the experiment are all identical. This is a _____________________.
constant
manipulated variable
responding variable
These students are experimenting with how cars move down ramps of different heights. Use what you've learned about variables to choose the correct answer.
The students are testing how the speed of a car changes when the height of the ramp changes. The speed of the car is the _____________________.
constant
manipulated variable
responding variable
When you organize data into graphs like this one, you can often see trends, inconsistencies, and possible errors. Analyze the graph. Which two statements about this graph are true?
It shows that the responding variable increased as the manipulated variable increased.
It shows that the responding variable decreased as the manipulated variable increased.
It shows a possible error in the recording of at least one data point.
It shows that the two variables are completely independent of each other.
Every investigation has limitations. Imagine doing an investigation in which you want to answer the question, "How many seagulls visit this beach every month?" In what way(s) do you think your investigation would be limited?
Check all that apply.
I can spend only a certain amount of time at the beach, so I probably won't be able to see every single seagull.
The beach is too large for me to see and count all of the seagulls that are visiting at one time.
I might count some of the seagulls more than once.
Match the image with the type of model it best represents.
Physical model
Conceptual model
Mathematical model
Computer model
Match the image with the type of model it best represents.
Physical model
Conceptual model
Mathematical model
Computer model
Match the image with the type of model it best represents.
Physical model
Conceptual model
Mathematical model
Computer model
Match the image with the type of model it best represents.
Physical model
Conceptual model
Mathematical model
Computer model
How is this map useful as a model?
It shows which businesses are most popular in the city.
It shows the weather conditions in the city.
It shows the entire population of the city.
It shows the distance from one location to another.
What are four good reasons to use a physical model rather than the real object it represents?
The real object is too large to fit in a laboratory.
The real object is too dangerous for humans to handle.
The real object is too common to be of interest to scientists.
The real object is too small to see with ordinary equipment.
The real object is too expensive to replace if it breaks.
Choose whether the activity is the work of an engineer or a scientist.
Studying how the strength of earthquakes depends on the size and type of fault lines
Enineering
Science
Choose whether the activity is the work of an engineer or a scientist.
Designing a building with a foundation that can withstand earthquakes.
Enineering
Science
Choose whether the activity is the work of an engineer or a scientist.
Developing a way to make artificial tissues using a 3D printer.
Enineering
Science
Choose whether the activity is the work of an engineer or a scientist.
Comparing the types of cells that make up different tissues.
Enineering
Science
A company is evaluating whether to make a new medicine. Classify the following as a cost, risk, or benefit.
The price of the substances used to make the medicine
Cost
Risk
Benefit
A company is evaluating whether to make a new medicine. Classify the following as a cost, risk, or benefit.
Harm to patients caused by side effects.
Cost
Risk
Benefit
A company is evaluating whether to make a new medicine. Classify the following as a cost, risk, or benefit.
The amount of money the company will make by selling the medicine.
Cost
Risk
Benefit
A company is evaluating whether to make a new medicine. Classify the following as a cost, risk, or benefit.
How hard it is for the medicine to break down in wastewater.
Cost
Risk
Benefit
Classify the system as open, closed, or isolated.
An insulated chemical reactor which materials flow into to be heated and products flow out.
Open
Closed
Isolated
Classify the system as open, closed, or isolated.
The electrical system in a blender, which uses electricity that flows from an electrical outlet to the motor and turns the blades.
Open
Closed
Isolated
Classify the system as open, closed, or isolated.
A bicycle pump that takes in air and then pushes it into a tire when a person moves the handle up and down.
Open
Closed
Isolated
Which statement best describes a process that uses positive feedback?
The output of the process continues to increase.
The input of the process continues to decrease.
The process decreases and then increases its input.
The process increases and then decreases its output.
Which three statements describe a process that uses negative feedback?
The process keeps its output within a set range of values.
The process continues to increase its output.
The process maintains its stability.
The process continually adjusts itself.
The process becomes more unstable as it continues.
