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WorksheetsScientific Method Unit 1
Total questions: 28
Worksheet time: 28mins
Sharon wants to conduct an experiment to determine if increasing the concentration of carbon dioxide around a plant will affect the plant’s rate of photosynthesis. She knows she must complete the following steps:
- Interpret data and display results in a graph.
- Record data as she conducts the experiment.
- Evaluate data and draw conclusions.
- Make a hypothesis
In which order should she conduct these steps?
2, 4, 3, 1
4, 2, 1, 3
3, 1, 2, 4
4, 2, 3 ,1
In 1927, the geneticist Hermann Muller exposed flies to ultraviolet light. He found that the flies’ offspring displayed many mutations. He concluded that the ultraviolet rays caused chromosome breakage, which caused the mutations?
What is his independent variable?
Chromosomes
Ultraviolet light
Mutations
Flies
In 1887 a strange nerve disease attacked the people in the Dutch East Indies. The disease was beriberi. Symptoms of the disease included weakness and loss of appetite, victims often died of heart failure. Scientists thought the disease might be caused by bacteria. They injected chickens with bacteria from the blood of patients with beriberi. The injected chickens became sick. However, so did a group of chickens that were not injected with bacteria.
One of the scientists, Dr. Eijkman, noticed something. Before the experiment, all the chickens had eaten whole-grain rice, but during the experiment, the chickens were fed polished rice. Dr. Eijkman researched this interesting case. He found that polished rice lacked thiamine, a vitamin necessary for good health.
What was the hypothesis of the original study?
Scientist thought the illness was caused by a virus
Scientist thought the illness was being caused by people of the Dutch East Indies
Scientist thought the illness was caused by bacteria
Scientist thought the illness was due to a lack of thiamine.
This is the variable that the scientist changes in order to test the results of the experiment.
Independent Variable
Dependent Variable
Controlled Variable
Causation Variable
Consider the following statement: If the bananas are exposed to higher levels of ethylene gas, then they will ripen quicker. Which of the following words best describes this statement?
Hypothesis
Question
Conclusion
Experiment
Once a scientist formulates a scientific question, they must complete another important step before starting their experiment. What is this step?
Formulate a question.
Gather research.
Perform an experiment.
Formulate a conclusion.
Consider this hypothesis: If I increase the amount of sunlight, then plants will grow more blooms. What is the INDEPENDENT variable?
Sunlight
Water
Blooms
Plant growth
Consider this hypothesis: If I increase the amount of sunlight, then plants will grow more blooms. What is the DEPENDENT variable?
Sunlight
Water
Blooms
Plant growth
This is the variable that changes when the independent variable changes. They depend on changes from something else.
Independent Variable
Dependent Variable
Controlled Variable
Causation Variable
These variables remain unchanged and include quantities that the scientist wants to remain constant.
Independent Variable
Dependent Variable
Controlled Variable
Causation Variable
Landon wants to test how Miracle Grow fertilizer impacts the plant growth of his new tree over time. He will add various amounts of Miracle Grow fertilizer to his newly planted tree and measure their progress. The Miracle Grow is a(n) _______.
Independent Variable
Dependent Variable
Controlled Variable
Causation Variable
Which is true about the scientific method?
It's a series of processes of how scientists discover creativity in the lab.
It's a list of safety precautions that all students and scientists must use in the lab.
The scientific method can only be used by certified scientists in a lab setting.
It's a series of processes which allow someone to make predictions, test, and form conclusions about a problem.
Consider the following statement: If I post on Instagram at 10:00PM, then I'll get the most like. Which of the following words best describes this statement?
Hypothesis
Question
Research
Problem
Does Facebook make people feel lonelier the longer they use it?
If I type the brand of battery being used, then the amount of time a battery will last longer.
What is the dependent variable?
What are the constants in this experiment?
What are the constants in this experiment?
