WorksheetsLab Safety, Scientific Inquiry Practice 11 q's
Total questions: 11
Worksheet time: 11mins
The variable the scientist controls, or the 'if' portion of the hypothesiss.
dependent variable
control group
independent variable
experimental group
A company wants to test a new dog food that is supposed to help overweight dogs lose weight. 50 dogs are chosen to get the new food, and 50 more continue their normal diets. After one month, the dogs are checked to see if they lost any weight. What is the independent variable in this scenario?
amount of dog food
type of dog food
the weight of the dog
the breed of the dog
A cow is given a growth hormone and then compared to another cow that was not given a growth hormone. Both cows were weighed at 2 years. What is the dependent variable in this scenario?
the amount of hormone given
the weight of the cow
the type of cow tested
the type of hormone tested
What is a controlled variable?
The variable being tested or changed by the scientist, also known as the manipulated variable.
The variable that the
scientist is measuring or
observing, also known as the responding variable.
The variables that the scientist keeps constant, which allows them to attribute the results to the independent variable alone.
How many independent variables should we change when conducting an experiment?
1
2
3
As many as we want
An experimental design included references from prior experiments, materials and equipment, and step-by-step procedures. What else should be included before the experiment can be started?
a set of data
a conclusion
safety precautions to be used
an inference based on results
A student was comparing preserved specimens of three plant species, X, Y, and Z, in a classroom. Which statement is an example of an observation the student could have made and not an inference?
the leaves produced by plant X are 4 cm across and 8 cm in length.
plant Y has a large purple flowers that open at night.
plant X produces many seeds that are highly attractive to finches.
the flowers of plant Z are poisonous to household pets.
Which science tool would you use to measure the volume of a liquid?
Graduated cylinder
Ruler
Balance
Thermometer
Record the following in cm
1.0
1.2
1.25
1.250
1.30
When must safety goggles be worn?
(a) Working with an open flames
(b) working with chemicals
(c) working with a mechanical device
(d) all of the above
