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Name that Vocabulary Word!
Name That Step!
Name That Problem!
More Vocabulary!
100
The process of using one or more of the five senses to gather information about the world.
What is an observation?
100
The first step of the scientific method.
What is identify the problem?
100
Susan notices many fish in a lake are dead. She immediately starts testing the water. What did she do wrong?
She forgot to make a hypothesis and design a experiment beforehand.
100
Any factor that can change an experiment.
What is a variable?
200
The facts, figures, and other evidence collected in an experiment.
What is data?
200
This step involves the scientist to predict what will happen in the experiment.
What is to form a hypothesis?
200
Mike wants to test if increasing temperature affects chemical reaction rates. He hypothesizes that if the temperature is hot then chemical reaction rates will increase. He decides to use common household chemicals and mix them together. What is wrong with his experimental design?
He didn't research the problem! He doesn't know which chemicals to perform his experiment with! (which is a safety hazard)
200
The one factor that a scientist changes during an experiment.
What is an independent variable?
300
An interpretation of an observation based on evidence and prior knowledge.
What is an inference?
300
The last step of the scientific method.
What is communicate the results (a conclusion)?
300
Cindy wants to test if different amounts of water will affect plant growth. She buys 16 plants at the store and decides 4 plants will not receive water, 4 plants will receive 1 cup of water, 4 plants will receive 2 cups of water, and 4 plants will receive 3 cups of water. What does she need to consider in experimental design to ensure she can compare the results of these plants?
She needs to make sure all the plants are the same species potted in the same soil.
300
The variable that is expected to change in response to the manipulated variable. (called the responding variable)
What is dependent variable?
400
A statement that describes what scientists expect to happen every time under a particular set of conditions.
What is a scientific law?
400
The step where you develop a procedure and address safety concerns.
What is create an experiment?
400
Jenny wants to test if the amount of light and the amount of moisture affects plant growth. She places one plant in a dark, dry place and one plant in a lighted, moist place. What is wrong with her experimental design?
She has too many independent variables!
400
Factors that you keep the same to ensure a “fair experiment.”
What are controls?
500
A well-tested concept that explains a wide range of observations.
What is a scientific theory?
500
The step a scientist takes after his/her experiment is flawed or the data is inaccurate.
What is modify the experiment?
500
Laura wants to test if chocolate causes pimples. After making a hypothesis, she decides she will have 20 people eat one chocolate bar a day for 2 months. She decides she will take a picture of each person each day to track her subjects' pimples. What is wrong with her experimental design?
She does not have a control group to compare her results with.
500
This makes a scientist have to modify or perform their experiment again.
What is an error?