8th Grade Nature of Science Test 1

Why do masks work to prevent the spread of COVID-19?

• They work to slow the respiratory droplets that carry the virus out of your mask.

• They completely protect you, and 100% stop the respiratory droplets that carry the virus from coming out of your mask.

• Masks are ineffective, and do not prevent respiratory droplets that carry the virus from leaving your mask.

• Masks don't work at all.

What are respiratory droplets?

• Small, solid balls of mucus that you cough up when you get sick.

• Balls of water that you drink in order to save you from getting the virus.

• Small water droplets produced by exhaling (breathing out).

a way of learning about the natural world through observations and logical reasoning; leads to a body of knowledge

• observing

• science

• inferring

• skepticism

the process of using one or more of your senses to gather information

• science

• inferring

• skepticism

• observation

Why do we perform experiments and investigations?

• To get good science grades

• To learn the scientific method

• To learn about the world around us

Tags

NGSS.MS-PS1-2

How does repeating an expirement improve the likelihood of obtaining accurate results?

• data can be compared
• time can be decreased
• equipment can be added
• procedures can be changed

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

A scientist is performing an experiment to determine the melting point of a new substance. Which action could increase the likelihood of obtaining accurate results? 

• repeating the experiment three times
• experimenting with multiple substances
• writing out the procedure after the experiment
• using three types of thermometers

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Science or Pseudoscience:  Personal bias and the opinion of the scientist.

• Science
• Pseudoscience

In order for an explanation to be considered scientific, it must be based on ____________.

• an inference
• a conclusion
• past experience
• evidence

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NGSS.HS-ESS3-5

NGSS.HS-LS4-1

NGSS.HS-LS4-2

NGSS.HS-PS1-2

Which question can best be investigated by a scientist?

• Should I buy a red shirt or a green shirt?
• Does chocolate milk or plain milk taste better?
• Does a plant need sunlight to grow?
• Which feels softer, cat fur or dog fur?

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6