PS Unit 4A: Chemistry - Matter (6 days)

Essential Questions:

Why doesn’t every batch of chocolate chip cookies taste the same? 

Why does a banana change color as it ripens?  

Why does a cook use a wooden spoon to stir a pot?  

How can balloons have many different shapes? 


Law of Conservation of Matter: Matter cannot be created or destroyed; it can only change from one form to another.

Nuclear change: involves changes in nuclear structure, such as fission (splitting) of a nucleus or an atom, or fusion (combining) of neutrons and protons to form heavier atoms

Plasma: plasma is a state of matter similar to gas in which a certain portion of the particles are ionized.

Solution: a solution is a mixture that is homogenous, when one or more solutes completely dissolve into a solvent.

Solute: a solute is a substance whose particles are dissolved in a solution 

Solvent: solvent is a substance in which the solute dissolves

Suspension: suspension is a heterogeneous mixture that settles over time.

Colloid: a colloid is a heterogeneous mixture that contains particles that are smaller than particles in a suspension and larger than particles in a solution.

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  Jun 14, 2012, 4:32 PM Emilie Siverling