Scientific Method Practice

In a controlled experiment, how many variables can be worked with at a time? 

• one
• none
• two or more
• how ever many makes sense.

If plants are exposed to sunlight, then they will grow taller.

What part of the scientific method is this an example of?

• Procedure

• Hypothesis

• Question

• Results

Why do we want to test one independent variable at a time?

• Because it is hard to setup a data table with more

• To know what is causing the changes. This helps us understand the effect of the variable being introduced to each group.

• It is what has always been done

Nick wanted to see how high an ice cube would float in different temperatures of water. Identify the DEPENDENT variable

• Amount of water

• how high the Ice cube floats

• Temperature the ice cube was at its highest height

• Size of the ice cube

This part of the experiment serves as a means of comparison; the one variable being tested has been left out of this group.

• experimental group

• control group

• data

• variables

What is a hypothesis

• A question

• An answer

• An educated guess or prediction

• An educated response

Tags

NGSS.HS-PS1-2

While doing your experiment, you should be ....

• Analyzing data

• Making a hypothesis

• Collecting data

• Researching your question

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

Identify the DEPENDENT VARIABLE.

If we expose plants to colder temperatures, then the leaves will change color.

• leaf color

• temperature

• plants

Identify the INDEPENDENT VARIABLE.

If we expose plants to colder temperatures, then the leaves will change color.

• leaf color

• temperature

• plants

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the INDEPENDENT variable is ...

• The type of plant

• The amount of sunlight

• The type of music

• The type of liquid