WorksheetsScience Method and Hypothesis
Total questions: 15
Worksheet time: 8mins
Purpose of Designing an Experiment
To test the hypothesis through controlled conditions.
To gather random data without any specific aim.
To create a theory without any practical application.
To observe phenomena without any manipulation.
Constant: Mass of car
Study on tire treads and braking distance
Impact of engine size on fuel efficiency
Effect of weather conditions on tire performance
Relationship between tire pressure and road grip
Science Method Step 5
Analyze Your Data
Design Your Experiment
Formulate a Hypothesis
Conduct Background Research
Constant: Lemon trees/soil
Study on water amount and lemon production
Impact of soil pH on lemon growth
Effects of sunlight on lemon tree yield
Comparison of lemon varieties in different climates
Independent variable: Depths of water
Temperature of water
Salinity of water
Pressure of water
pH level of water
Definition of a Hypothesis
A hypothesis is a statement that can be tested.
A hypothesis is a proven fact.
A hypothesis is an untestable theory.
A hypothesis is a random guess.
Definition of Dependent Variable
The dependent variable is what is being measured or observed.
The dependent variable is the variable that is manipulated in an experiment.
The dependent variable is a constant that does not change during an experiment.
The dependent variable is the outcome that is not influenced by other variables.
On a graph, the dependent variable is on the Y-axis.
The dependent variable is on the X-axis.
The dependent variable is on the Y-axis.
The independent variable is on the Y-axis.
The dependent variable is not represented on the graph.
Dependent variable in the math problem speed experiment
Amount of distance traveled
Amount of time it takes
Speed of the object
Acceleration of the object
Science Method Step 3
Experimentation
Hypothesis
Research
Observation
Independent variable: Amount of water
Height of bean plants
Amount of sunlight
Type of soil
Temperature of the environment
Independent variable in the paper airplane experiment
Mass of paper airplane
Wingspan of paper airplane
Type of paper used
Angle of launch
To increase the validity of your experiment, use a large sample size.
Using a large sample size increases the validity of an experiment.
A small sample size is sufficient for accurate results.
Increasing the number of variables improves validity.
Validity is not affected by sample size.
Independent variable: Amount of vitamin A
Mass of rats
Amount of protein
Amount of carbohydrates
Mass of mice
Independent variable in the math problem speed experiment
Two groups of students
The speed of the students
The distance covered by the students
The time taken by the students
