2nd Grade Science

What can be found in all three states of matter?

• grass

• water

• gas

• sun

Tags

NGSS.MS-ESS2-4

What step does every scientific experiment begin with?

• hypothesis
• question/problem
• procedures
• conclusion

What type of matter does not take the shape of it's container?

• solid

• liquid

• gas

• milk

Why is it important for scientists to do several trials when they collect their data?

• One trial is enough

• More trials mean the results are more accurate

• So they can make up more data

You and your partners are conducting an investigation.  Which of these would be a careful way to keep records?

• notes you write on scratch paper
• a chart you fill in as you conduct the investigation
• describing or telling your partners about your observations as they record them
• observations that you record later on after the investigation has been conducted

Scientific questions have to be...

• Measurable/Investigated

• Easy

• Interesting

• Short

Megan says that chocolate chips melting is irreversible because they turn into a liquid and stay that way. Is she correct?

• Megan is correct. The change is irreversible. Once the chocolate is melted into a liquid, it will always be a liquid.

• Megan is correct because you can still eat chocolate even if its melted.

• Megan is not correct. The change is reversible. You can put the melted chocolate into the freezer to cool down which will make the chocolate solid again.

Tags

NGSS.MS-PS1-4

It is important for you, as a science student, to take care when running an experiment.  You should always follow experimental procedure correctly, use tools properly, and record data carefully, making sure to make no typos.  All of these are important rules. Why?

• they help create an atmosphere of safety first
• they help ensure that all predictions will be correct
• they are in place for the betterment of scientists everywhere
• they help create experiments that are repeatable, with consistent results
  

Tags

NGSS.MS-PS1-2

NGSS.MS-PS2-5

Steam is an example of?

• Liquid

• Gas

• Solid

Tags

NGSS.MS-PS1-4

Why is doing the scientific process important? (Select the best two)

• It cannot be trusted

• It is long and only done by a few people

• It helps us solve real-world problems.

• It gives us accurate data to help us make good decisions

Tags

NGSS.MS-LS2-4