Vocab
All matter is made up of
What will the mass of butter be if it starts at 58 grams then is melted?
58 grams
If a substance can be easily dissolved in water it is...
Highly soluble
Baking a cake
Chemical
What is the definition of a physical change?
A change in size, shape, or state of matter but no new thing is made
Types of matter
solid, liquids, and gasses
Baking soda is mixed with vineger WITHOUT any lid on top. If the starting mass is 48 grams, what will it be after the reaction and why?
A little bit less (46, 45, etc) due to some of the mass leaving as air
A substance that can't be dissolved in water
Insoluble
Cutting paper
Physical change
What is the definition of a chemical change?
A change where a new substance is created
How liquid atoms are arranged
Near each other but not tightly packed
Baking soda and vinegar is mixed with a balloon on top. If the mass is 34 grams at the start, what will the ending mass be?
34 grams
A substance's ability to catch on fire
Flammability
A bike rusting
Chemical
What unit do we measure mass in?
Grams
How solid atoms are arranged
Very tight together
David is making a cake. When he measures the batter it's 1,130 grams. When it is baked it is 1,030 grams. What happened?
Some of the liquid evaporated and turned into a gas
Something will not burn when it catches on fire
Not flammable
Give four examples of physical changes?
Mrs. H will accept answers
How gas atoms are arranged
Lose and far apart
When a physical or chemical changes occurs.... The mass
is neither created or destroyed
What properties could you look at to tell the difference between flour, sugar, and baking soda?
Grain size, flammability, solubility
NOT COLOR
Mixing cake batter
Physical
Four examples of chemical changes
Mrs. H will accept answers