Experimental design

An educated guess that has not been tested. 

• law
• theory
• hypothesis
• fact

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?

Multiple answer!!!! Which things does Maya need to keep the same in her experiment?

• the amount of water each plant gets

• the amount of soil

• the type of plant

• the amount of sunlight each plant 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?

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

• ruler

• stopwatch

• triple beam balance

• thermometer

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?

Multiple answers!!! Which things should Anthony keep the same in his experiment?

• the amount of water

• the size of the sugar cubes

• the temperature of the water

Jeff is 6 feet 2 inches is a ___________ assesment

• Qualitative
• Quantitative

The cake has a sweet smell is a _______ assessment. 

• Qualitative
• Quantitative

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

• Independent
• Dependent
• Control