Process Quiz Review

The mass of a tennis ball could be measured using a _________________ and would have     a value of  ________________

• triple-beam balance, 57g
• graduated cylinder, 57 ml
• triple-beam balance, 57 kg
• graduated cylinder, 57 L

Dr.Morgan wants to determine the growth rate of a tree. She decides to measure the height of the tree every week for a year and record her measurements. Which of the following units should Dr. Morgan use to report the height of the tree?

• meters 
• millimeter
• inches
• feet

Molly grew four bean plants in pots with the same soil and provided each with an equal amount of light.  She gave each plant different amounts of water. She then measured the amount of gas produced by each plant and their increase in height over a few weeks. An independent variable in Molly's experiment is the amount of

• water given to each plant
• height gained by each plant
• oxygen produced by each plant
• carbon dioxide produced by each plant

Steve studied the factors that affect the decomposition of vegetable matter by soil microbes. He put four pieces of carrot of equal weight into each of three plastic bags filled with soil. He added different amounts of water to each bag and kept them all at room temperature. Every two days, Steve removed the carrot pieces from each bag to weigh them. Which hypothesis was Steve most likely testing in his experiment?

• If the temperature is reduced, then there is increased decompose activity.
• the weight of the decomposing matter is increased, then the rate of decomposition will decrease.
• If the moisture content of the soil is increased, then there is increased decomposer activity.
• the soil type is changed, then the rate of decomposition will decrease.

Jody placed four equal sized tomato plants in separate containers.
  She gave each  plant the same amount of light and nutrients 
different amounts of water, and frequently measured the amount of oxygen produced by each plant.   Which is the hypothesis Jody was most likely studying in this experiment?

• If the amount of light is increased, then the rate of oxygen will increase.
• If the amount of nutrients is increased, then the rate of growth will increase.
• If the amount of water is increased, then the rate of oxygen will increase.
• the soil type is changed, then the rate of decomposition will decrease

All of the following are examples of biological waste and should be placed in a biological hazard container except

• blood
• chemicals
• dissected specimens
• beakers

A team of biologists studied how changes in climate affected the Columbia River king salmon population over a fifty-year: period. What were the climate conditions when the salmon population was lowest?

• Cool
• Average
• Warm

A biologist is studying the effect of a sugar solution on the growth rate of yeast. She will add different amounts of the sugar solution to four test tubes containing yeast. What tool should the biologist use to add the sugar solution to the yeast population?

• flask
• beaker
• pipette
• graduated cylinder 

What is the correct order of the steps in the scientific method

• Question, Research, Hypothesis, Experiment, Data, Results
• Research, Hypothesis, Question, Experiment, Results, Data 
• Hypothesis, Research, Question, Experiment, Data, Results 
• Question, Research, Hypothesis, Data, Experiment, Results

Keyante created an experiment to see if changing the temperature of a liquid would increase the mass of that liquid. Which of the following would be the independent variable? 

• temperature
• liquid
• mass
• experiment