Biology 1st Semester Exam

A small, living aquatic organism would best be observed using which of the following pieces of equipment?

• Compound light microscope

• Electronic balance

• Scanning electron microscope

• Centrifuge

Measurements gathered from observing a pea plant grow 5 cm over a three week period will result in the collection of______

• inferences

• data

• hypothesis

• conclustions

What is NOT an example of qualitiative data?

• The average high daily temperature for the month of July

• the names of chemicals found in a breakfast

• The color shirts students are wearing at the school

• Types of shoes worn by people on a city street

A series of steps used by scientists to solve a problem or answer a question. 

• scientific method
• recipe
• data collection
• metric system

A testable explanation to a problem that has not yet been tested. 

• data
• theory
• hypothesis
• fact

Tags

NGSS.HS-PS1-2

NGSS.HS-PS4-3

This variable in an experiment is the one being changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

Tags

NGSS.MS-PS2-2

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• The type of plant
• The amount of sunlight
• The type of music
• The type of liquid

Tags

NGSS.MS-LS1-5

If you increase the amount of spinach you eat, then you will increase the iron in your blood. 
What's the dependent variable?

• increase the amount of iron in your blood
• spinach you eat

A student observes that a plant in his window sill appears to by dying. Which is NOT a valid hypothesis for why his plant seems to be dying?

• The plant is receiving too little water

• The plant is receiving too much sunlight

• The plant is 5cm tall

• The plant is receiving too much water

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

You suggest that the absence of water could prevent the growth of bread mold, this is __________

• an experiment

• a hypothesis

• the conclusion

• an analysis

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4