Vocab Study Guide
Write the correct term in the box beside the matching definition.
Hypothesis / An educated guessIf I change this, then this will happen
Purpose / *The reason for doing the experiment
Constants / *Things that are kept the same during an experiment
Independent variable / *What is changed on purpose in an experiment, what I change, the CAUSE
Procedure / *A set of steps to follow in order to conduct an experiment
control / *Part of the experiment that is used as a comparisonto see if they independent variable caused a change.
Repeated trials / *Doing an experiment more than once to check for accurate results
conclusion / *A summary or final statement about what happened in an experiment
Dependent variable / *The change that happens in an experiment
What is measured to get results, the EFFECT
The EFFECT
Write the appropriate word in the blank:
hypothesisconclusioncentimeterslitersdata
constantscontrolpurposeprocedure
dependent variableindependent variable
Isaac was asked to use the Experimental Design Diagram to plan an experiment. First he had to find a purpose or a question to answer for his experiment. He decided to grow bean seeds in different temperature rooms to see if it affected how tall the plants would grow. He predicted that the bean seeds in a warmer room would grow taller. This prediction is also known as his ______hypothesis______.
He wrote the ______procedure______which showed a detailed list of steps or directions to follow for his experiment. To have something to compare his results to, he grew bean seeds under normal room temperature conditions. This was his ______control______group. The change in the temperature of the room was the __independent variable____. The things he kept the same, or ___constants______, were the size of flower pot, the amount of soil, the amount of water, and the amount of sunlight. He added 20 milli__liters_____ of water each day. Because his ___dependent variable______was how tall the bean plants would grow, he used a ruler to measure the height in ___centimeters______.
He collected ______data______about how tall each plant grew. After letting the bean plants grow for 2 months, the plant in the cold room grew 5 cm, the room temperature plant grew 8 cm, and the warm temperature plant grew 10 cm. His ______conclusion______was that bean plants do grow taller in a warmer room.