Intro to Science Test!

First Name

Last Name

Class Period

• 3
• 4
• 5
• 7
• 8

When conducting a lab experiment, it is important to:

• Wear loose-fitting clothing and jewelry.
• Taste chemicals to determine their properties.
• Work alone to avoid distractions.
• Follow all written and verbal instructions.

When conducting experiments involving chemicals or potentially hazardous materials, it's crucial to:

• Wear sunglasses to protect your eyes.
• Avoid wearing eye protection to enhance your vision.
• Wear safety goggles to shield your eyes from splashes and fumes.
• Only wear eye protection if feel like it.

If you accidentally cut yourself while dissecting a specimen, you should:

• Ignore the cut and continue working.
• Tell the teacher for medical attention.
• Use the same scissors to cut a bandage.
• Touch the cut to other parts of your body to spread germs.

Which of the following is a well-written hypothesis?

• Plants need sunlight to grow.
• If I water a plant more, then it will grow taller.
• Plants grow faster with fertilizer.
• Water is important for plants.

In an experiment testing the effect of fertilizer on plant growth, which variable would be the independent variable?

• The height of the plants.
• The type of fertilizer used.
• The amount of sunlight the plants receive.
• The amount of water the plants receive.

In the same experiment above, which variable would be the dependent variable?

• The height of the plants.
• The type of fertilizer used.
• The amount of sunlight the plants receive.
• The amount of water the plants receive.

A control group in an experiment is used to:

• Test the effect of the independent variable.
• Ensure that the results are fair.
• Measure the dependent variable.
• Change the independent variable.