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They are solid
Samuel Ziddah
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Do cooled substances expand?
Yes
Do metals expand when they are cooled?
No, most substances contract with cooling, only some exotic substances (eg water) expands when cooled.
What happens as most substances are cooled?
Sometimes they get cold or start to freeze.
Can glass contract?
Yes, like most substances glass contracts when cooled.
Why does a balloon shrink when cooled?
because the particles of the compound, called atoms, vibrate more when heated and then when cooled the
Is a liquid cooled internal combustion engine more effecient than an air cooled engine?
Not necessarily but usually
Do particles get smaller or bigger when heated?
When particles are heated or cooled, they do not change size at all. They simply move with greater kinetic energy so the space between particles increases. This prompts the changes in size we see when substances are heated or cooled.
What are two or more substances that are together but not combined?
two or more subsantes (a mixture of substances) !
What does crystal size mean?
In igneous rocks, large crystals mean that the rock cooled more slowly. Smaller crystals mean that the rock cooled more quickly.
What is the ability of two or more substances to combine and form one or more new substances?
Reactivity
What is two or more substances that are not chemically mixed together what is two or more substances that are not chemically mixed together?
Two or more substances that are not chemically combined make up a mixture.
How did chemistry come about?
Chemistry developed from the observations of natural processes, in which substances were mixed, dissolved, heated, or cooled. Natural processes include rust, solubility, fermentation, crystallization, and alloying (mixtures of metals). (For more on how chemistry developed, see the related link)
