March 30th Ice to Steam Ch.5 Extreme Changes of State

Ice to Steam Ch.5 Extreme Changes of State

By Michelle Strauss

Open Ended

Yesterday we read about evaporation. Write a super sentence using the word, evaporation.

Open Ended

How does temperature cause evaporation?

Multiple Choice

What type of syllable is "sub" in sub-lim-ing ?

• closed

• open

• VCe

Multiple Choice

What type of syllable is "lim" in sub-lim-ing ?

• closed

• open

• VCe

Multiple Choice

True or False?

Metals can change from a solid to a liquid and back to a solid again.

• true

• false

Multiple Choice

Steel has a higher melting point than iron.

• true

• false

Multiple Choice

Why is it important to know the melting point of certain metals?

• So you can melt different metals in your oven.

• So things like jets don't explode in the air.

• So the object made out of that metal won't melt. Like a jet.

• This way everyone will use titanium to make jets.

Open Ended

Why do scientists use Nitrogen for research involving cells?

Multiple Choice

Why is solid carbon dioxide unusual?

• because it is dry ice

• because when heated it changes straight into a liquid

• because it is used to make "smoke" effects in movies

• because when heated it changes straight into a gas

Multiple Choice

What is SUBLIMING ?

• a solid changing into a gas when heated

• a solid changing into another solid when heated

• a solid changing into a liquid when heated

• a solid disappearing

Multiple Choice

The temperture on Saturn's moon, Titan, is ______ for a gas to be in the form of a liquid.

• high

• low

• just right

Multiple Choice

How can we change the shape of metal?

• boil it

• freeze it

• melt it

Multiple Choice

What does it mean to say that a gas has a very LOW boiling point?

• even in the hottest of weather, they won't condense into liquids

• they will never boil

• even in the coldest of weather, they won't condense into liquids

• temperatures have to be at 32 degrees for them to condense

Open Ended

Why do you think the people of Sweden choose to have their dead bodies freeze dried?

Open Ended

Why does SUBLIMATION make dry ice perfect for making smoke effects?

(sublimation is turning a solid straight into a gas when it is heated)

Poll

Which do you think is "cooler" or more interesting?

• Melting iron into liquid metal.

• Turning solid carbon dioxide into a gas with hot water.

Open Ended

If you were building an airplane would you use titanium or aluminum? Why?

Please go to Spelling Schoology to complete your spelling test. Please read the next slide before clicking "submit."

​If you are NOT done the opinion writing, click "submit" and then use asynchronous time to finish the opinion writing. It is due on Friday!