Experimental Design

Maya designed an experiment to answer the following question: How does the amount of water given to a lima

bean seed affect how tall it grows?

In this experiment, what variable should Maya CHANGE?

• the amount of water

• the kind of plant

• the type of soil

• the amount of sunlight it gets

Maya designed an experiment to answer the following question: How does the amount of water given to a lima

bean seed affect how tall it grows?

Which tool will Maya use when she is collecting her data on the height of the lima bean plants?

• thermometer

• stopwatch

• beaker

• ruler

Anthony designed an experiment to answer the following question: How does the temperature of water affect the time it takes for a sugar cube to dissolve?

Which factor should Anthony CHANGE in his experiment with the sugar cubes?

• the amount of water he uses

• the size of the sugar cubes

• the temperature of the water

Anthony designed an experiment to answer the following question: How does the temperature of water affect the time it takes for a sugar cube to dissolve?

What tool should Anthony use to measure how much time it takes for the sugar to dissolve?

• ruler

• stopwatch

• triple beam balance

• thermometer

The cake has a sweet smell is a _______ assessment. 

• Qualitative
• Quantitative

Jeff is 6 feet 2 inches is a ___________ assesment

• Qualitative
• Quantitative

The type of variable that you change or manipulate in an experiment.  It is what you are testing.

• Independent
• Dependent
• Control

The type of variable that responds to the experiment and is what you measure to determine if your hypothesis is true.

• Independent
• Dependent
• Control

The parts of the experiment that must be kept the same.

• Constants
• independent
• Dependent

If I water the plant more often, then it will grow taller.  Name the dependent variable.

• The amount of water.
• The amount of soil.
• The height of the plant.
• The amount of water.