Unit 1 Exam: Scientific Method and Characteristics of Life

Eating food and plants convert sunlight to energy are an example of

• cells

• DNA

• metabolism

• reproduction

hormones being released after you eat that affect blood sugar, sweating when you are hot, and shivering when you are cold are all examples of

• metabolism

• homeostasis

• cells

• DNA

Greg runs an experiment by himself to see which gum brand blows the biggest bubbles.  What is the independent variable?

• Brand of Gum
• Greg
• Size of Bubbles
• Color of Gum

How does the temperature of a tennis ball affect its bounce height? The controlled variable is

• Height of Ball
• Temperature
• The ball

Under what color light do plants grow best? The independent variable is ____

• The color of the lights
• The plant
• The height of the plant

Under what color light do plants grow best? The control group would be_____

• Same light each time
• Plant growing under blue or red light
• Height of the plant
• a plant growing under normal light

 Which flavor of Kool-Aid® most affects water’s boiling point? The dependent variable is ___

• different flavors of kool-aid
• amount of time to boiling point
• amount of water

Which flavor of Kool-Aid® most affects water’s boiling point? The independent variable is ___

• different flavors of kool-aid
• amount of time to boiling point
• amount of water

Which brand of chocolate bar melts fastest in the sun? The independent variable is _____

• brand of chocolate bars
• length of time to melt
• location of the bars

Which type of fertilizer helps plants grow taller? The dependent variable is _______

• height of plants

• types of fertilizer

• type of plant