WorksheetsQUIZ SC.5.N.1.1 The Practice of Science PART 2
Total questions: 20
Worksheet time: 19mins
After completing the first trial of an experiment, what should a student do next?
Repeat the investigation to see if the results stay the same and are valid.
Delete the data because it doesn't match the student's hypothesis.
Replace the findings at 5 minutes with the average of 10 readings.
Use the data and stop the experiment.
Which of the following is an observation that can be made about this investigation?
The temperature of the coffee feels like it is 39.2 degrees.
The room temperature is cold.
The reading on the thermometer is wrong.
The temperature of the coffee is 39.2 degrees.
A student wants to know if the number of lady bugs in the garden changes from winter to spring. What is the best way to investigate this?
Ask other students to count the number of lady bugs they see on different days and compare the data.
Look for information about lady bugs on the internet about the number of lady bugs observed in other schools.
Find out which plants in the garden attract the most lady bugs and count the number of lady bugs near those plants every month.
Observe and record the number of lady bugs in the garden every week from December to May.
Tim wants to build a model of the water cycle as an experimental investigation. Sam says it is not an experimental investigation. Who is correct and why?
Tim, because other scientists have built this model in the past.
Sam, because materials are from different stores.
Tim, because he plans to repeat his investigation multiple times.
Sam, because variables are not identified or controlled.
Lisa wants to see which liquid would make plants grow tallest. She gathers 3 plants, 50 ml of milk, apple juice, and Pepsi. What variable is Lisa testing?
The amount of sunlight.
The amount of liquid placed in each plant.
The types of liquids that will make the plants grow tallest.
The kind of dirt.
When repeating an experiment which has been done before, what may cause an error?
Not following all of the steps in the experiment.
Repeating the experiment at least 3 times and comparing the data.
Using the same materials.
Making observations and collecting data.
You completed an experiment, but your results do not match the rest of the class. Why would your teacher ask you to repeat your investigation?
to have you change your hypothesis to match your results
to change your steps to get the same results as the rest of the class
to see if your original results were caused by an error
to see if your can get new results to match your hypothesis
A student writes the following list of materials in her lab notebook:
- Collect materials:
- 3 rose plants
- milk
- Pepsi
- orange juice
- 3 measuring cups
What piece of information did the student NOT include in her list of materials to ensure that someone could repeat this experiment?
the location of the experiment
the type of measuring cup used in the experiment
the temperature of the liquids used in the experiment
the amount of each liquid used in the experiment
Julio counts the number of flowers that grow in his backyard. Then he compares those numbers to the daily temperature. He makes the table. Based on Julio’s practice of science, which of the following statements supports that this is a science investigation?
It is an investigation because he is making observations and collecting evidence.
It is not an investigation because he does not follow the scientific method.
It is an investigation because he uses a control group in the study.
It is not an investigation because he does not use variables in his process.
Anna measures how far a toy car rolls across the floor when the floor has different coverings on it. Then, she puts the data into a table. Which is the best prediction for how far the marble will roll on the wood floor for trial 3?
6
11
52
20
Mia and Lisa want to perform the same experiment the exact same way. Why should they expect the results from both experiments to be the same?
Experiments should be able to be reproduced by others.
Mia made a mistake during the experiment.
Lisa is stealing the Mia’s experiment.
Experiments should always have at least 3 trials.
What is NOT a reason why is it important that an experiment can be repeated by someone else?
so other people can see if the results were correct
so others can develop their own research from the experimenter's work
to show all the errors the experimenter made during the experiment
to prepare for future experiments
Which of the following should an experimenter do to make sure they conducted a good scientific experiment?
Make sure no one has already taken similar measurements.
Make sure other people see them them taking measurements.
Make sure others can repeat their experiment and results.
Make sure no one can repeat their experiment and results.
The students are interested in how adding eggshells to the soil affects plant growth. They decide to do an experiment to find out if eggshells can help plants grow taller. The students plants nine plants. They gives three of the plants (Group A) 1 gram of eggshells. They give the other three plants (Group B) 3 grams of eggshells. They give the last 3 plants (Group C) 5 grams of eggshells. Then they measured the growth of the plants. Their data is recorded in the table. The students made the claim that eggshells helped plants grow faster. Which best explains why students’ claim is NOT valid?
They did not measure the height of the plants enough times.
They should have used a fourth group that got more than 7 g of eggshells.
They should have only used one plant per group.
They did not include control plants without eggshells.
What is the independent variable?
It is the one variable being changed in an experiment.
It is the results of the experiment.
It is what is remaining the same in an experiment.
It is what happens normally and is used to compere the results of the independent variable.
What is the dependent variable?
It is the one variable being changed in an experiment.
It is the results of the experiment.
It is what is remaining the same in an experiment.
It is what happens normally and is used to compere the results of the independent variable.
What are the constant/controlled variables?
It is the one variable being changed in an experiment.
It is the results of the experiment.
It is what is remaining the same in an experiment.
It is what happens normally and is used to compere the results of the independent variable.
What is the control group?
It is the one variable being changed in an experiment.
It is the results of the experiment.
It is what is remaining the same in an experiment.
It is what happens normally and is used to compere the results of the independent variable.
Why is a control group important in an experiment?
Control groups do not matter.
Control groups help determine if results are random.
Control groups show what variables stayed the same.
Control groups show what variable is changed.
Frogs use the sun to keep warm. Mike hypothesizes that his frog will prefer swimming in warm water. He places his frog on a block in the middle of the bathtub, and measures how much time the frog spends off the block during a ten minute period. He conducts the experiment under four conditions in the bathtub: no water, warm water, cool water, and room temperature water. In this experiment, which is the control group?
no water
cool water
room temperature water
warm water
