Variables
Scientific Method
Data
More Scientific Method
Bonus Questions
100
The variable that is purposely manipulated
Independent Variable
100
What do scientific investigations begin with?
Asking a question or observing a problem
100
What are the 2 different types of observations?
Qualitative and Quantitative
100
Identify the independent variable. I want to know if vitamins will make a kitten grow faster.
giving the kitten vitamins
100
What is the main gas that plants take in during photosynthesis?
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Hydrogen
B) Carbon dioxide
200
The variable that is being measured
Dependent Variable
200
What is a testable prediction?
hypothesis
200
What skill is a scientist using when she listens to the sounds that whales makes.
A) making a hypothesis
B) interpreting data
C) making observations
D) drawing conclusions
200
Identify the CONTROL group: I am wondering how sugar affects the activity level of mice.
mice NOT given sugar
200
What is the difference between weathering and erosion?
Weathering: Breaking down rock
Erosion: Moving rock
300
If you create a boat using aluminum foil, it will be able to hold 200 pennies while floating in the water.
What is the DEPENDENT VARIABLE?
Number of Pennies
300
A student is testing how different amounts of sunlight affect the growth of plants. They conduct multiple trials over the span of several months. Is this an example of repetition or replication?
Repetition
300
Mass of 5g, Volume of 10mL, and Height of 5 ft are all examples of __________ data.
quantitative
300
Scientists test a hypothesis by
A. formulating questions.
B. designing models.
C. doing experiments.
D. drawing conclusions.
C. doing experiments.
300
How are igneous Rocks formed?
When hot, molten rock crystallizes and solidifies
400
Alex wanted to find out what toothpaste made teeth the cleanest. Everyday she brushed her teeth with a different toothpaste and used a different mouthwash. She measured the amount of plaque each day with a plaque test.
What did Alex do wrong in her experiment?
She had 2 independent variables: toothpaste and mouthwash
400
Suppose a group of scientists tests a new medicine to see if it helps with a disease. If another group of scientists does the same test in a similar way is this repetition or replication?
Replication
400
"The dog is soft", "the sidewalk is hot", and "her hair is brown" are all examples of ______________ observations.
qualitative
400
If a scientist conducts an experiment and finds that their hypothesis is incorrect, what should they do next?
A) Ignore the results and move on.
B) Change the data to fit the hypothesis.
C) Analyze the results, revise the hypothesis if necessary, and conduct further experiments.
D) Stop doing science altogether.
C) Analyze the results, revise the hypothesis if necessary, and conduct further experiments.
400
Which part of the cell is responsible for controlling what enters and leaves the cell?
A) Nucleus
B) Cell wall
C) Cell membrane
D) Cytoplasm
C) Cell membrane
500
Darius wanted to test how the mass of a paper airplane affected the distance it would fly. Paper clips were added before each test flight. As each paper clip was added, the plane was tested to determine how far it would fly.
What is the CONTROL group?
Planes with NO paperclip
500
Which of the following methods is most effective for confirming the validity of an experiment's results?
A) Conducting the experiment only once.
B) Sharing results on social media.
C) Repeating the experiment multiple times and having other scientists replicate it.
D) Changing the hypothesis after seeing the results.
C) Repeating the experiment multiple times and having other scientists replicate it.
500
A student notices that every time they water their plants with a certain type of fertilizer, the leaves turn a brighter green color. Which of the following is the best observation made by the student?
A) The plants are happy.
B) The fertilizer is the best.
C) The leaves of the plants turn brighter green when using the fertilizer.
D) Plants need water to grow.
C) The leaves of the plants turn brighter green when using the fertilizer.
500
Identify the control group: How does honey impact the growth of bacteria on a culture?
group not given honey
500
Which rock layer is the oldest:
Layer E