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Scientific Method
Test Description: Introduction to Scientific Method
Instructions: Answer all questions to get your test result.
1) The ball was a measured mass of 113 grams. This statement is
A
inference
B
explanation
C
prediction
D
observation
2) Jacob investigated chemical reaction by recording the color, smell and release of bubbles. What type of evidence did Jared use?
A
calculation
B
qualitative observation
C
quantitative observation
D
measurement
3) Which of these statements is a hypothesis?
A
Many infectious diseases are caused by bacteria.
B
Flossing has been proven to reduce cavities in children's teeth.
C
If I floss my teeth daily then I should get less cavities than someone who does not floss his teeth.
D
Generally anything that removes bacteria from your mouth is a good thing.
4) Two students think that winter thunderstorms are always followed by snow. How could they test their hypothesis?
A
Measure the snowfall after the first thunderstorm.
B
Look at weather data for the past week.
C
Analyze winter weather data for the past five years.
D
Download a video on thunderstorms to watch.
5) A student finishes her lab report saying. The mean average temperature in Louisville in June is 82 degrees. This statement is
A
an opinion
B
a prediction
C
a hypothesis
D
a conclusion
6) Jenna flips a coin 10 times. Seven times it landed on heads and three times it landed on tails. Jenna concludes that coins always land on heads more than tails. Jenna might be wrong because
A
Her sample size is too small to be valid.
B
She should only flip the coin twice.
C
It violates Newton's third law of motion.
D
She did not state a hypothesis.
7) Students were investigating cleaners. They cleaned 5 desks in the classroom with a different brand of cleaner. One desk was not cleaned at all. What is the control for this experiment?
A
The desk that was not cleaned.
B
the 5 different brand of cleaners.
C
the amount of time between cleaning the desks and testing for bacteria
D
The desk that had the most bacteria.
8) Students shoot a marble across a spring with a spring loader plunger. They use a different amount of force each time. They measure how far the marble rolls.What is the dependent variable?
A
the amount of force in the spring
B
the mass of the marble
C
how far the marble rolls.
D
the amount of friction from the floor
9) A student wants to see if different colored boxes are the same temperature when placed in the sun. What is the dependent variable?
A
the color of the boxes
B
the temperature of the boxes
C
the size of the boxes
D
the number of trials
10) A gardener wants to know if fertilizer will make his roses grow taller. Which plant would be the CONTROL in this experiment?
A
a rose plant that gets water and fertilizer but is placed in a closet with no light.
B
a rose plant that gets water and sunlight but NO fertilizer
C
a rose plant that get water, sunlight, and fertilizer
D
a rose plant that gets sunlight anf fertilizer but no water.
11) On the first trial a student rolls a car down a ramp and measures how far it rolls. On the second trial he doubled the height of the ramp and adds sandpaper to give it more friction. Why is this experiment invalid?
A
The experiment tested more than one variable.
B
The experiment does not have a control.
C
The student did not know how to calculate speed.
D
The student should have stopped after the first trial.
12) A student want to find a plant that will survive in a hot, dry climate. Shee plants four different plants in the desrt and measures their growth each week. What is the independent variable?
A
the height of the plant
B
the type of plant
C
the amount of sunlight
D
the amount of water
13) After performing an experiment, what should a scientist do to make sure his findings are correct?
A
Make sure the experimented can be repeated with the same results.
B
Ignore any results that don't match his hypthesis.
C
Change a different variable and see if he gets the same result.
14) A student wants to discover how much water is needed for a potato plant to grow. What is the independent variable?
A
the amount of water each plant receives
B
the temperature
C
the type of soil
D
the amount of sunlight
15) A frog was hungry. It saw a green bug. I bet that bug will taste good, thought the frog. With a flick of its tongue the frog ate the bug. Yuck! said thee frog. That bug tastes gross. What was the frog's hypothesis?
A
The frog was hungry.
B
That bug tastes gross.
C
I bet that bug will taste good.
D
The frog ate the bug.
16) A well-designed experiment should have a hypothesis.
A
true
B
false
17) Which statement about the kittens is an inference?
A
The kittens are in a field of yellow flowers.
B
The kittens have many colors.
C
The kittens are related.
D
The kittens have fur.
18) A frog was hungry. It saw a green bug. I bet that bug will taste good, thought the frog. With a flick of its tongue the frog ate the bug. Yuck! said thee frog. That bug tastes gross.What was the frog's problem?
A
The bug tasted yucky.
B
The frog was hungry.
C
That bug will taste good.
19) A frog was hungry. It saw a green bug. I bet that bug will taste good, thought the frog. With a flick of its tongue the frog ate the bug. Yuck! said thee frog. That bug tastes gross. What was the test?
A
The bug tasted gross.
B
The frog was hungry.
C
I bet that bug will taste good.
D
The frog ate the bug.
20) A frog was hungry. It saw a green bug. I bet that bug will taste good, thought the frog. With a flick of its tongue the frog ate the bug. Yuck! said thee frog. That bug tastes gross. What is the conclusion?
A
The frog was hungry.
B
The bug tasted yucky.
C
The frog ate the bug.
D
I bet that bug will taste good.
*select an answer for all questions
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