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WorksheetsUnit 1: Mid-Topic Review
Total questions: 41
Worksheet time: 40mins
A teacher wants to study the effect of missing assignments on students' grades. What is the independent variable in this experiment?
The number of missing assignments
The students' grades
The subject being taught
The number of students
In an experiment to observe algae growth in different concentrations of fertilizer, what is the dependent variable?
The type of fertilizer used
The concentration of fertilizer
The amount of algae growth
The temperature of the water
The Variable that I control in an experiment
Independent Variable
Dependent Variable
"Is Bounty paper towel more absorbent than sparkle paper towel?
Experiment: Does changing the wing shape to make it more narrow affect the distance a paper airplane will fly?
The wing shape is the ___________ variable.
independent
dependent
Experiment: How does the flavor of ice cream affect the speed of melting?
The flavor of ice cream is the ___________ variable.
independent
dependent
What is one of the constants in this situation?
A students was doing an experiment using the scientific method. Every three days the student plans to count the green leaves. Which would be a good hypothesis for this experiment?
If plants are placed in direct sunlight, then they will grow more green leaves.
If plants are places in bright light, then they will grow more green leaves than in dim light.
If plants are place in clay pots, then they will grow more green leaves than plastic pots.
If plants are in warmer temperatures, then they will grow more green leaves.
If I add fertilizer to my garden, then my plants will grow faster.
The independent variable is (a)
The dependent variable is (b)
If I brush my teeth every day, then I will not develop cavities.
The dependent variable is (a)
The independent variable is (b)
Which brand of soap gets rid of germs the best? Select the hypothesis for the question.
I like Irish spring soap because it makes me smell good.
Sometimes when I go to the store my sister tells me to bring her something back.
If antibacterial soap is used, then the amount of germs decrease by 99%.
Breanna uses soap because it gets rid of germs.
The table top is smooth.
Qualitative Observation
Quantitative Observation
The speed of the car is 55 mph.
Qualitative Observation
Quantitative Observation
These kind of observations are made using instruments such as rulers, balances and thermometers.
Qualitative
Quantitative
In 6 months, it will be too hot to go outside.
I can jump high in tennis shoes because they have rubber on the bottom.
The container is filled to the 350 mL mark.
How is a scientific experiment different from other types of investigations?
Investigations are only done by scientists.
Investigations require variables to test a hypothesis.
Scientific experiments are only done using observations.
A scientific experiment uses variables and establishes a cause-effect relationship.
What distinguishes an experiment from other types of scientific investigations?
An experiment requires observations only.
An experiment must occur in a laboratory.
An experiment involves manipulating variables to test a hypothesis.
An experiment is a theoretical investigation without practical activities.
Diana wanted to know if native Florida pollinators like bumble bees were more attracted to native Florida plants or nonnative, invasive plants. She went for walks down a variety of nature trails several times over the spring months. Each time Diana took a walk, she watched the bumble bees and other pollinators and documented whether they approached the native Florida plants or the nonnative, invasive plants. At the end of two months, she analyzed her data and reported her findings to several local environmental agencies. What type of scientific investigation did Diana complete?
observational study
controlled experiment
design Investigation
literature research/review
Sally was disappointed with the lunch being served at school. She decided to take a student survey about the kinds of food students liked to eat. Is Sally conducting a scientific experiment in this case?
Yes, the is conducting research.
No, she must compile her data in some way.
No, a survey is not an experiment.
Yes, Sally is collecting opinions that are a form of qualitative data.
Abigail, Destiny, Christina and Noah are working on a science fair project. They want to know if a certain type of glue will produce stretchier slime. What should they do to answer their question?
They should make observations of the different types of glue.
They should do an investigation about the different types of glue.
They should do a controlled experiment where they make slime with different types of glue and measure how long each batch of slime stretches.
They should do an investigation of the different types of glue and a controlled experiment where they change the type glue they use to make slime and measure the differences in length.
Evan, Cove and Jayden want to conduct more research to help them understand the effects that exercise has on human body systems. Which would be the most reliable resource for them to use for their research?
Wikipedia
Social media platform
An essay that a friend wrote
An article written by a medical professional
A group of scientists wanted to learn more about the soil at school. They took samples of the soil from the ground all around campus and measured the mineral content. What best explains their plans?
They are doing an investigation and a controlled experiment.
They are making observations.
They are doing an investigation.
They are doing a controlled experiment.
