# Unit 1 Lesson 3 Scientific Investigations: PART 2 - CONCEPTS AND SKILLS Question Preview (ID: 26242)

### To Summarize The Processes And Characteristics Of Different Kinds Of Scientific Investigations. TEACHERS: click here for quick copy question ID numbers.Answers? Play games to get them!

Scientists must repeat an experiment for it to be useful.
a) True
b) False
c)
d)

After six weeks, the class gathered data. The plants in Group A (no direct/partial sun) grew 1 cm. The plants in Group B (direct/partial sun) grew 4 cm. Could the class draw the conclusion that sunlight does impact the sunflowerâ€™s height?
a) Yes
b) No
c)
d)

After 6 weeks, the class gathered data. The plants in Group A (no direct/partial sun) grew 1 cm. The plants in Group B (direct/partial sun) grew 4 cm. Hypothesis: If we place sunflowers in direct /partial sunlight, then they will grow taller.
a) Based on the data, the hypothesis was supported.
b) Based on the data, the hypothesis was not supported.
c)
d)

Which hypothesis would be best tested by conducting this experiment? Hypothesis: __?__ Experiment: Place a piece of bread in a plastic bag labeled A and a piece of bread on a plate labeled B. Observe both pieces of bread each day.
a) If I place pieces of bread in the sun, then mold will grow n the sun but not the shade.
b) If I place pieces of bread in a plastic bag and on a plate, then mold will grow faster in a bag.
c) If I soak a piece of bread in water, then mold will grow on bread soaked in water.
d)

Emma experimented to determine how long it would take dough to rise above the top of a loaf pan. She added salt to DOUGH B, water to DOUGH C, and baking soda to DOUGH D. She did not add anything to DOUGH A. Which dough was the controlled variable?
a) A
b) B
c) C
d) D

Testable Question: Do sunflowers grow taller in direct sunlight or partial sunlight? Hypothesis: If we place sunflowers in direct or partial sunlight, then they will grow taller. Which of the followings is the constant or controlled variable(s)?
a) type of flower, type and amount of soil, amount of water
b) height of flowers
c) amount of light
d)

Mekala filled three different-sized containers up to the rim: A was large, B was medium, and C was small. Mekala hypothesized that the water in the container holding the least amount would evaporate first. Do the results support her hypothesis?
a) Yes
b) No
c) cannot tell from the data
d) there is not enough data

Testable Question: Do sunflowers grow taller in direct sunlight or partial sunlight? Hypothesis: If we place sunflowers in direct or partial sunlight, then they will grow taller. Which of the following is the INDEPENDENT variable?
a) type of flower, type and amount of soil, amount of water
b) height of the sunflowers
c) amount of sunlight
d)

Testable Question: Do sunflowers grow taller in direct sunlight or partial sunlight? Hypothesis: If we place sunflowers in direct or partial sunlight, then the will grow taller. Which of the following is the DEPENDENT variable?
a) type of flower, type and amount of soil, amount of water
b) height of sunflowers
c) amount of light
d)

A class is testing the effects of sunlight on sunflowers to see if they grow taller. The sunflowers in Group A do not receive any sunlight. The sunflowers in Group B receive partial or direct sunlight. Which represents the experimental group?
a) Group A
b) Group B
c)
d)

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