Scientific Method Quiz

What is a hypothesis?

• A hypothesis is a proven fact that does not require any testing.
• A hypothesis is a random guess with no basis in evidence.
• A hypothesis is a proposed explanation or prediction that can be tested through experimentation or observation.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS2-2

What is the independent variable?

• The independent variable is the variable that is kept constant in an experiment.
• The independent variable is the variable that is manipulated or changed by the researcher in an experiment.
• The independent variable is the variable that is measured in an experiment.

What is an inference?

• A wild guess without any evidence or reasoning.
• A conclusion or deduction based on evidence and reasoning.
• A random assumption without any logical basis.

Tags

NGSS.MS-LS1-3

NGSS.MS-LS2-4

What is the dependent variable?

• The dependent variable is the variable that is being measured or observed in an experiment.
• The dependent variable is the variable that is manipulated in an experiment.
• The dependent variable is the variable that is controlled in an experiment.

What are constants in an experiment?

• Variables that are kept the same throughout the experiment and do not change.
• Variables that change during the experiment.
• Factors that are not important in the experiment.

Give an example of a hypothesis.

• An example of a hypothesis is 'If plants are given more sunlight, then they will grow taller.'

• If plants are given more sunlight, they will grow.

• If plants are given more water, they will not grow.

Tags

NGSS.MS-LS1-5

Give an example of an inference.

• Observing wet ground and inferring that the ground is wet.

• Observing wet ground and inferring that a sprinkler was turned on.
• Observing wet ground and inferring that it rained.

Test the effect of different amounts of fertilizer on plant growth. The independent variable is:

• The growth of the plant

• The type of soil

• The amount of light

• The amounts of fertilizer used

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which observation is quantitative?

• It is 5 cm long
• It is smooth
• It looks red
• It is dry

Dolphins have smooth skin.

• quantitative observation
• qualitative observation