When you are preparing for a lab, it is important to________

• roll up sleeves and wear push hair back

• wear dangling jewelry

• put on a baggy sweatshirt

• eat your lunch

What safety precautions should always be taken when working with and unknown liquid?

• take a swig

• pour it down the drain

• never taste or directly smell the liquid

• give it to your friend to taste

If you spill something in the laboratory, you should___________.

• clean it up and put it in the trash

• notify the teacher at once

• keep working and worry about it later

• email the principal later

What is the independent variable that is being manipulated?

• temperature

• the beaker size

• amount of water

• flame position

Tags

NGSS.MS-PS1-4

What step comes after the question in a science investigation?

• conclusion

• collect the data

• hypothesis

• conduct the experiment

Tags

NGSS.MS-PS2-2

What is the approximate maximum amount of water vapor that a cubic meter of air can hold at 20 degrees Celsius?

• 20 g

• 30 g

• 10 g

• 18 g

Tags

NGSS.MS-ESS2-5

What unit would you use to measure temperature?

• grams

• liters

• meters

• degrees

When a cold front passes, what happens to the air temperature?

• it stays the same

• it falls

• it rises

• None of the above

Tags

NGSS.MS-ESS2-5

What kind of severe weather produces high winds and heavy rains?

• tornado

• blizzard

• tsunami

• hurricane

Tags

NGSS.MS-ESS2-5

Which type of precipitation can damage the hood of a car?

• rain

• hail

• snow

• sleet