Vocabulary
What is weight?
How strongly gravity pulls something down to earth.
True or false?
Physical changes and be undone/reversed.True
True or False?
Chemical changes can be undone/reversed.
False
Burning a match. Chemical or physical?
chemical
Balloon vs. Bag of Marbles
Which on has more volume?
Balloon
What is matter?
Anything that has mass and takes up space.
What is magnetism?
Physical property: Can a magnet stick to the substance?
Physical Properties: Wood, small, not-magnetic, not-reflective, not soluble, low conductivity
Chemical Properties: burns easily, gives off smoke, gives off a smell, turn black after burning
Hint: Use me to light things. What am I?
firewood
a match
Heating a frying pan. Chemical or physical?
physical
Balloon vs. Bag of Marbles
Which one has more mass?
Marbles
What is mass?
measurement of the amount of matter in an object
Can an object bounce light or show a reflection?
Physical Properties: reflective, conductive, not soluble, magnetic.
Chemical Properties: rusts easily, doesn't melt easily
Hint: Married people wear me. What am I?
metal ring
Frying an egg. Chemical or physical?
chemical
Name an object with high reflectivity.
Mirror, shiny, metal, water, screen
What is volume?
How much space an object takes up.
What is conductivity?
Can heat or electricity flow through an object?
Physical Properties:hard on the outside, soft on the inside, not magnetic, low reflectivity, low solubility, low conductivity.
Chemical Properties: heats easily, outside is a solid, inside is a liquid, responds to heat quickly to turn from a liquid to a solid.
Hint: breakfast. What am I?
egg
molding play dough into a new shape. chemical or physical?
physical
Leather, fabric, anything that doesn't hold heat well
What is a property? (in science)
something you can observe
What is solubility?
Physical Properties: solid, white, not magnetic, not reflective, not conductive, soluble
Chemical Properties: mixes well into other matter, smells sweet when heated, can change color when heated.
Hint: I make things sweet. What am I?
sugar
an old coin rusting. chemical or physical?
chemical
I want to do an experiment that has a chemical change. What can I do?
cooking, baking, rusting an old metal