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scenario 5: does the temperature of water affect the time it takes for …

Question

scenario 5: does the temperature of water affect the time it takes for a sugar cube to dissolve?

  • independent variable:
  • dependent variable:

hypothesis:
scenario 6: a student is investigating whether the color of light affects the speed of plant photosynthesis.

  • independent variable:
  • dependent variable:

hypothesis:
scenario 7: a company wants to determine if their new brand of battery lasts longer than their competitors. they test both batteries in the same type of flashlight.

  • independent variable:
  • dependent variable:

hypothesis:
scenario 8: does the amount of sleep a student gets affect their test scores?

  • independent variable:
  • dependent variable:

hypothesis:
scenario 9: a scientist is testing if the amount of salt in water affects its freezing point.

  • independent variable:
  • dependent variable:

hypothesis:
scenario 10: a teacher wants to know if using a new study method improves students grades.

  • independent variable:
  • dependent variable:

hypothesis:

Explanation:

Response

Scenario 5

Brief Explanations

The independent variable is what is changed, and the dependent variable is what is measured. A hypothesis is a proposed explanation.

  • Independent Variable: Temperature of water
  • Dependent Variable: Time it takes for sugar - cube to dissolve
  • Hypothesis: Higher water temperature will decrease the time it takes for a sugar cube to dissolve.

Scenario 6

Brief Explanations
  • Independent Variable: Color of light
  • Dependent Variable: Speed of plant photosynthesis
  • Hypothesis: Different colors of light will affect the speed of plant photosynthesis, with red and blue light being more effective than green light.

Scenario 7

Brief Explanations
  • Independent Variable: Brand of battery (new brand vs competitor's brand)
  • Dependent Variable: Battery - life (time the battery lasts)
  • Hypothesis: The new brand of battery will last longer than the competitor's brand in the same type of flashlight.

Scenario 8

Answer:

Scenario 5:

  • Independent Variable: Temperature of water
  • Dependent Variable: Time it takes for sugar - cube to dissolve
  • Hypothesis: Higher water temperature will decrease the time it takes for a sugar cube to dissolve.

Scenario 6:

  • Independent Variable: Color of light
  • Dependent Variable: Speed of plant photosynthesis
  • Hypothesis: Different colors of light will affect the speed of plant photosynthesis, with red and blue light being more effective than green light.

Scenario 7:

  • Independent Variable: Brand of battery (new brand vs competitor's brand)
  • Dependent Variable: Battery - life (time the battery lasts)
  • Hypothesis: The new brand of battery will last longer than the competitor's brand in the same type of flashlight.

Scenario 8:

  • Independent Variable: Amount of sleep a student gets
  • Dependent Variable: Student's test scores
  • Hypothesis: More sleep will lead to higher test scores for students.

Scenario 9:

  • Independent Variable: Amount of salt in water
  • Dependent Variable: Freezing point of water
  • Hypothesis: An increase in the amount of salt in water will lower its freezing point.

Scenario 10:

  • Independent Variable: Use of new study method (using it or not using it)
  • Dependent Variable: Students' grades
  • Hypothesis: Using the new study method will improve students' grades.