Bench Mark Review Cells

How many more people have purple for a favorite color than red?

• 3
• 5
• 7
• 9

When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertalizers, equal light, and equal water. What type of variable is the water?

• Dependent
• Independent
• Control

Which statement is an inference about this picture?

• The van is tan.
• The  van ran into KFC. 
• The driver was hungry. 

Which of the following tool would help with a quantitative observation?

• magnifying glass
• ruler
• microscope

I saw a black dog running in the park. 

• Quantitative Observation
• Qualitative Observation

When working with fire or items that have been heated

• It's fine to touch them afterwards
• Always use heat safety equipment like tongs and gloves.
• Remember the items could be dangerous long after removed from the fire

A student hypothesized that robins prefer large birdhouses to small ones. He build four birdhouses of different sizes to test his hypothesis. What was the independent variable in the students study?

• The size of the birdhouse
• The number of birds in the house
• The location of the birdhouse
• The season of the year

A student designed an experiment to study how temperature affects the rate at which an enzyme digests a protein. She put equal masses of liver into four equal-sized test tubes, brought the test tubes to different temperatures, introduced equal amounts of enzymes to each tube, and measured the duration of the chemical reaction. What factors were held constant in the student's experiment?

• Liver mass, test tube size, and enzyme amount
• Liver mass, enzyme amount, and reaction duration
• Test tube temperature and reaction duration
• Test tube temperature, liver mass, and enzyme amount

If the total magnification of a microscope is 100x, then which objective lense is being used?   

• mediocre lense
• medium lense
• middle lense
• Millville lense

If the total magnification of a microscope is 400x, then which objective lense is being used?   

• height power
• honest power
• honey power
• high power