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WorksheetsScience Test Practice
Total questions: 20
Worksheet time: 5hrs 0mins
In an experiment, the variable you keep the same is the...
independent variable
dependent variable
controlled variable
constant variable
What is the information gathered by observation or experimentation when it is not called evidence?
scientific discoveries
data
theory
variable
Jessa wants to learn more about the feeding habits of ants. What steps should Jessa take to best study the feeding patterns of ants?
form a hypothesis, conduct an experiment, record data, make a conclusion
conduct an experiment, form a hypothesis, make a conclusion, record data
form a hypothesis, record data, conduct an experiment, make a conclusion
record data, form a hypothesis, make a conclusion, conduct an experiment
What is the variable representing the value of being manipulated or changed?
constant
independent variable
control
dependent variable
Homer notices that his shower is covered in a strange green slime. Homer decides to spray half of the shower with coconut juice, thinking this will kill the slime. He sprays the other half of the shower with water. After 3 days of "treatment" there is no change in the appearance of the green slime on either side of the shower. What is the independent (manipulated) variable in this experiment?
water
green slime
his shower
coconut juice
The variable that the experimenter is controlling or manipulating and that gets graphed along the x-axis is the
independent variable
dependent variable
control
outside factor
It's the part of the Scientific Method that describes the steps to the experiment. What is it called?
purpose
hypothesis
materials
procedure
The steps used by scientists to solve problems and uncover facts is the...
testing method
Cer method
scientific method
question method
A written statement using the words "if, then" is ...
a result
information
a problem
a hypothesis
How do you check whether the data supports the hypothesis?
analyze the data
modify the experiment
predict the outcome
design the experiment
A student hypothesized that the amount of sunlight a sunflower plant receives determines the number of sunflower seeds the plant produces. In her experiment, the number of seeds produced is the...
dependent variable
independent variable
controlled variable
uncontrolled variable
The process of asking questions is called...
inquiry
predicting
estimating
comparing
A scientific investigation usually begins with...
a formulation of a hypothesis
observations of specific events
a statement of theory
a question
A scientist was conducting an experiment and noticed that when he mixed two substances together an unusual odor occurred. What scientific skill did the scientist use?
prediction
observing
modeling
classifying
The part of an investigation that remains the same is the...
hypothesis
independent variable
control
dependent variable
A botanist wants to see how different colored light waves influence the growth of pea plants. She puts the same number of seeds into three identical pots with the same kind and amount of soil. She then gives them the same amount of water every three days for the length of the experiment. One pot is placed into a dark windowless closet. Another pot is left on the windowsill, and the third is placed under a lamp with a green bulb. She records the height of each plant every day for three months. What is the independent variable in this experiment?
the amount of soil in the pots
the color of the light given to the plants
the amount of water given to the plants
the amount of time the experiment was conducted
A student hypothesized that the amount of sunlight a sunflower plan receives determines the number of sunflower seeds the plant produces. In her experiment, the number of seeds produced is the...
independent variable
dependent variable
controlled variable
uncontrolled variable
A student planted the same kind of seeds in pots A and B. She planted five seeds in pot A and five seeds in pot B. The amount and type of soil in both pots was the same. She added the same amount of water to both pots each week. Pot A was placed in a sunny window. Pot B was placed in a dark room. After four weeks, she observed the plants in both pots. The plants in pot A were green, with tall, think stems. The plants in pot B were yellow, with tall, thin stems. Which statement best explains why the plants in pot A were different from the plants in pot B?
Pot A contained more soil than pot B.
Pot A contained more seeds than pot B.
Pot A received more sunlight that pot B.
Pot A received more water than pot B.
Which would be the best high-level scientific question?
Who made the first microscope?
How many giraffes live in Africa?
How long ago did dinosaurs live on Earth?
Does the amount of salt in water affect the temperature it boils at?
What type of observation deals with descriptions that cannot be expressed in numbers?
qualitative
investigative
quantitative
scientific
