Ag Science - Strand 1_Hypothesising and Experimenting

Which of the following is a step-by-step approach used to help answer a question or solve a problem?

• Experiment

• Scientific Method

• Hypothesis

• Prediction

An hypothesis is ...

• an educated guess

• a proposed explanation for an obervation

• both testable and falsifiable

• all of the above

The independent variable in an experiment is....

• the factor that is changed

• the factor that is measured

• the factor that is controlled

• none of the above

An experiment that tests only one variable at a time using an experimental group and a control group as a comparison is called ...

• an investigation

• a theory

• a prediction

• a controlled experiment

Which of the following are examples of quantitative data?

• the iodine turns blue-black

• there was a 2 cm increase in the growth of barley seedlings

• after drying, the mass of the grass dropped by 3g.

Which type of graph or chart would be used to show the relationship between two variables?

• a pie chart

• a line graph

• a scatter graph

• a bar chart