science Flashcards
1
Q
What is a Physical Change?
A
Does not change the substance’s composition
2
Q
dissolving sugar in water
A
physical change
3
Q
Sublimation
A
Solid-Gas
4
Q
Deposition
A
Gas-Solid
5
Q
Solid-Gas
A
Sublimation
6
Q
Gas-Solid
A
Deposition
7
Q
Endothermic
A
Heat is added to the reaction, energy is absorbed (usually producing a decrease in temperature)
8
Q
Exothermic
A
Less energy is needed to break the bonds in the reactants, energy is often released (often an increase in temperature/light produced)
9
Q
A
