Which of the following statements is a scientific hypothesis?

No gum disease if you floss daily versus weekly.

Which question can most likely be determined through a scientific investigation?

What is the amount of light needed to grow tomatoes?

Which conclusion is best supported by the data?

As the length increases, distance traveled increases

Which statement about gravity is written as a law?

Gravity btwn 2 objects depends on mass & distance

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Nature of Science--Experimental Design

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Learners will be assessed on their understanding of experimental design and the steps of the scientific method.

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Questions 9

Answers

1
Which of the following statements is a scientific hypothesis?
<div>Gum disease is caused by microorganisms.</div>
Any method that reduces bacteria will improve oral health.
Flossing is an effective method to improve oral health.
<div>No gum disease if you floss daily versus weekly.</div>
2
Which question can most likely be determined through a scientific investigation?
Who will be the winner of the next lottery?
<div>What football team will win the next SuperBowl?</div>
Which four types of bird feathers have the prettiest colors?
What is the amount of light needed to grow tomatoes?
3
Which plant is the control in the experiment and why?
Plant 2-grew 0.5 cm
Plant 3-recieved the most water
Plant 1-b/c its uncovered
Plant 4-look healthier
4
A student measures the height of five plants. Which set of #s represents the mean & range?
mean: 15, range: 25
mean: 20, range 10
mean: 10, range: 20
mean: 25, range 15
5
Which conclusion is best supported by the data?
Large objects travel shorter distances than small objects
As the length increases, distance traveled increases
Large objects travel longer distances than small objects
As length increases, the distance traveled decreases
6
Which statement about gravity is written as a law?
Gravity works b/c masses bend space & time
<div>Added minerals will change gravity's effect</div>
Gravity btwn 2 objects depends on mass & distance
Experiments done on gravity today are better than the past
7
The table shows adaptations of different plants; Which plant likely lives in the desert climate
Plant 2
Plant 3
Plant 4
Plant 1
8
What does this type of house indicate about the area?
Soil stays frozen
Floods occur
Earthquakes occur
Soil is unstable
9
Eleven bottle rocket were built--the flight times are below; what's the flight median time?
22 seconds
27 seconds
25 seconds
26 seconds

Nature of Science--Experimental Design Flashcards | StudBud