Unit 1 Scientific Investigation

When graphing your results, which variable in the experiment should go on the x-axis?

• Independent Variable

• Dependent Variable

• Control Variable

• Constant

A student wants to examine whether the average height in her class differs between males and females. What kind of graph would she use to display her data?

• Bar Graph

• Line Graph

1)What is the dependent variable in Jane’s experiment?

• Weight of algae

• number of crabs

• number of snails

What is the control in Jane’s experiment??

• Buckets with crabs

• Buckets with no crabs

What is the independent variable?

• Days in June

• individuals/m²

How would you describe the overall trend for the ladybug population between June 12th and June 14th?

• Increase

• Decrease

• Stay the same

Trisha was measuring the height of fertilized pea plants in her experiment every day and recording the change in height in millimeters. What instrument would be most appropriate and accurate for her to use to take these measurements?

• graduated cylinder

• metric ruler

• digital scale

• yardstick

Which of the following is not a characteristic of life?

• requires oxygen

• made of cells

• grow and develop

• maintain homeostasis

Which of the following is an example of a quantitative observation?

• The height of the chair is 60cm

• The chair is blue

• The legs of the chair are metal

• The chair is old

Which of the following is an example of a qualitative observation?

• The spider has 8 legs

• The spider is covered in hair

• The spider has 2 fangs

• The spider is frightened