Scientific Method and Metric System Review

What is science?

• A method of storytelling

• The study of nature through observation and experimentation

• The study of ancient civilizations

• An art form

Tags

NGSS.HS-PS2-1

What are the 6 steps of the Scientific Method?

• Identify the Problem, Collect Information, Hypothesis, Experiment, Record Data, Conclusion

• Observation, Question, Hypothesis, Experiment, Analysis, Conclusion

• Question, Experiment, Hypothesis, Data Collection, Analysis, Conclusion

• Observation, Hypothesis, Experiment, Data Collection, Conclusion, Theory

Tags

NGSS.MS-PS1-2

NGSS.MS-PS2-2

What is a quantitative observation?

• An observation based on characteristics that cannot be measured

• An observation based on number data

• An observation based on personal opinions

• An observation based on subjective feelings

Which of the following are quantitative observations?

• The liquid is blue.

• The temperature is 25°C.

• The object is soft.

What is a qualitative observation?

• An observation based on numerical data

• An observation based on characteristics that cannot be measured

• An observation based on precise measurements

• An observation based on statistical analysis

Which of the following are qualitative observations?

• The height of the plant is 15 cm.

• The plant has green leaves.

• The mass of the substance is 50 grams.

• The temperature of the liquid is 22°C.

A group of scientists wants to know if changing the color of a light bulb will affect the growth rate of plants. Write a hypothesis for the scientists.

• If the color of the light bulb changes, then the plant growth rate will be different.

• If the light bulb color is changed, then the plants will grow faster.

• If the light bulb color changes, then there will be no effect on plant growth rate.

• If the light bulb color is red, then the plants will grow slower.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is a procedure in an experiment?

• The question being investigated

• The steps followed to conduct the experiment

• The result of the experiment

• The hypothesis being tested

What is a variable in an experiment?

• The constant factor in the experiment

• The part of the experiment that is kept the same

• The factor that can change in the experiment

• The procedure used to collect data

Tags

NGSS.MS-PS2-2

A group of scientists is testing the effect of different types of soil on the growth of tomato plants. They use three types of soil: sandy, clay, and loamy. All other conditions such as water amount, temperature, and light are kept the same. What are the independent, dependent, and control variables in this experiment?

• Independent Variable: type of soil; Dependent Variable: growth of plants; Control Variables: water amount, temperature, light

• Independent Variable: growth of plants; Dependent Variable: type of soil; Control Variables: water amount, type of soil

• Independent Variable: water amount; Dependent Variable: growth of plants; Control Variables: type of soil, temperature, light

• Independent Variable: temperature; Dependent Variable: growth of plants; Control Variables: type of soil, water amount

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4