Biology Chapter 1 Review!

Which of the following best describes a controlled experiment?

• An experiment where only one variable is changed at a time while all others are kept constant.

• An experiment where all variables are changed at the same time.

• An experiment with no variables.

• An experiment that does not use a control group.

Which of the following is an example of a prediction?

• Plants need water to grow.

• If plants are given fertilizer, then they will grow taller than plants not given fertilizer.

• Watering plants every day.

• Plants are green.

In an experiment testing the effect of sunlight on plant growth, what is the independent variable?

• The amount of sunlight the plants receive

• The height of the plants

• The type of plant used

• The amount of water given

Tags

NGSS.MS-LS1-5

Which of the following best represents the "claim" in a Claim, Evidence, Reasoning (CER) structure?

• The data collected from the experiment

• The statement that answers the original question

• The explanation of why the evidence supports the claim

• The materials used in the experiment

Tags

NGSS.MS-PS3-5

Which type of experimental design involves comparing a group that receives a treatment to a group that does not?

• Correlational design

• Experimental design with a control group

• Observational design

• Descriptive design

Which of the following is the best example of "evidence" in a CER response?

• Plants need sunlight to grow.

• The average height of plants in sunlight was 15 cm, while those in shade averaged 8 cm.

• Sunlight helps plants make food.

• Plants are green.

Which variable is the dependent variable in an experiment where you test how different amounts of fertilizer affect plant growth?

• The amount of fertilizer used

• The type of plant

• The growth of the plant (measured in height)

• The amount of sunlight

A student claims that "increasing the temperature will increase the rate at which sugar dissolves in water." Which of the following would be the best evidence to support this claim?

• Sugar dissolves in water.

• At 20°C, 5g of sugar dissolved in 2 minutes; at 40°C, 5g of sugar dissolved in 1 minute.

• Water is a universal solvent.

• Sugar tastes sweet.

Tags

NGSS.MS-PS1-4

Which of the following is the best example of reasoning in a CER response?

• The plant in sunlight grew 10 cm taller than the plant in shade, which only grew to be 6 cm.

• Plants need sunlight for photosynthesis, which provides energy for growth, so more sunlight leads to taller plants.

• The plant in shade was shorter.

• Plants are green.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

Given the following scenario, identify the control group: "A scientist tests the effect of a new drug on blood pressure. Group A receives the drug, and Group B receives a sugar pill."

• Group A

• Group B

• Both groups

• Neither group

Tags

NGSS.MS-LS1-5