Scientific Investigations Review

When working in the laboratory, what pieces of safety equipment should a scientist always use?

• Fire Blanket and Eye Wash
• Goggles and Lab Apron
• Fire Extinguisher and Safety Shower
• Gloves and Eye Wash

Which of the following is the safest way for a scientist to remove a beaker of water from a hot plate?

• Remove the beaker using a test tube holder.
• Wrap the beaker in paper towels.
• Use heat-proof gloves to remove the beaker.
• Use regular gloves to remove the beaker.

What is the volume of the liquid in the graduated cylinder?

• 40 mL
• 43 mL
• 45 mL
• 46 mL

When water is placed in a graduated cylinder it bends and forms a meniscus. What is the best way to read the volume of a liquid in a meniscus?

• Read the top of the meniscus
• Read the bottom of the meniscus
• Read the middle of the meniscus
• Tilt the graduated cylinder and read the volume

A student wanted to know if the type of water affected how tall seedlings grew. The student plans to measure the height of seedlings everyday for 3 weeks. Which of the following is the best unit for the student to measure the height of the seedlings?

• Millimeters
• Centimeters
• Meters
• Kilometers

What is an example of qualitative data?

• The grey elephant has 2 ears
• The elephant has rough feeling skin
• The elephant can make a noise up to 2 decibles
• The elephant is 10 years old

What is an example of quantitative data? 

• The book had 498 pages
• The book is fiction
• The book had a happy ending
• The book had 3 main characters 

What is the length of the screw? 

• 4 cm
• 5 cm
• 5.1 cm
• 6 cm

What is always kept the same during an experiment?

• Independent Variables
• Dependent Variables
• Manipulated Variables
• Constant Variables

When creating an experiment or investigation it is always important to do which of the following?

• Change all of the variables
• Only change one variable and keep everything else the same.
• Not including any controls or constants.
• Testing 2 variables at the same time.