PLTW Lesson 1

What are the 4 main vital signs?

• blood pressure, respiratory rate, heart rate, cholesterol

• temperature, blood pressure, respiratory rate, heart rate

• blood sugar, temperature, respiratory rate, heart rate

• heart rate, pulse, respiratory rate, blood pressure

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

NGSS.MS-LS2-1

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.

• Diameter of the ball
• Force acting on the ball
• Height that the ball bounces
• Height from which the ball is dropped

Tags

NGSS.MS-PS3-5

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. 

• experimental group
• control group
• data
• variables

Which of the following is a valid conclusion?

• It was correct because the zone of inhibition was the biggest.

• It was incorrect because I said the other one.

• In conclusion, the lab was a success. Many antibiotics were tested, and zones of inhibitions were measured to determine the best antibiotic.

• My hypothesis was incorrect because I predicted that ampicillin would be the best antibiotic but tetracycline had the biggest zone of inhibition.

Tags

NGSS.MS-ETS1-3

How can you make sure your sample of bacteria does not become contaminated?

• wear protective equipment

• wash work surface

• never put the top on the counter

• only open the agar plate a little at a time

The step of the scientific method where you state whether or not your hypothesis (prediction) was correct or incorrect and why.

• hypothesis

• conclusion

• procedure

• data collection

Which statement is true for viruses?

• unicellular, too small to see with school microscope, need a host to reproduce

• not alive, unicellular, needs a host to reproduce, can be seen with school microscope

• not alive, cannot reproduce without a host, too small to see with school microscope

• not alive, needs a host to reproduce, can be seen with school microscope, treated with antibiotics

Which statement is true to bacteria?

• treated with vaccines, unicellular, can reproduce

• treated with antibiotics, unicellular, can be seen with school microscope

• can reproduce on its own, too small to be seen with school microscope

• treated with antifungal medicine, can be seen with school microscope, not alive

Tags

NGSS.MS-LS1-1

Which statement is true for fungi?

• single or multicellular; like moist,humid environments

• single cellular only, treated with antibiotics

• multicellular only, treated with vaccines

• single or multicellular, cannot reproduce without a host

Tags

NGSS.MS-LS2-3