Nature of Science Quiz

Justin blows his nose, but mucus seems to leak through the tissue. He decides to test which tissue holds up the best while sneezing. What is the independent variable?

• sneezing

• amount of tissue

• Justin

• type of tissue

Mr. McNeice wanted to know if different types of music affected people's heart rates, so he played different music and checked their pulses. What is the dependent variable?

• type of music

• how long they listend to music

• heart rate

• Mr. McNeice

A scientist is collecting data on the number of times a cricket chips per minute. What sense is the scientist most likely using to make observations?

• hearing

• smell

• touch

• sight

What is another word for hypothesis?

• evidence

• investigation

• graph

• prediction

Which question can best be investigated by a scientist?

• Does a plant need sunlight to grow?

• Which feels softer, cat fur or dog fur?

• Should I buy a red shirt or a green shirt?

• Does chocolate milk or plain milk taste better?

The container is filled to the 350 mL mark with water.

• observation

• problem

• hypothesis

• inference

Why should an experiment be repeated/replicated?

• to form a hypothesis

• to change controls

• to reduce the chance of error

• to identify the problem

This is the outcome of the experiment. We get data and results from this.

• Independent Variable

• Dependent Variable

• Constant

• Control

How many independent variables should be tested at a time in a scientific investigation?

• none

• one

• two

• three

Which is the dependent variable in Amelia's experiment?

• the number of bean plants in each group

• the height of each bean plant

• the amount of water given daily to each plant

• the amount of fertilizer given to each group of bean plants