Matter
Physical change or chemical change?
100
What is Matter?
Everything that mass and takes up space is Matter.
100
If ice melts into liquid form, is it chemical or physical change?
Physical change.
200
What are some signs that chemical change may have occurred.
Observable signs that a chemical change has occurred include a change in color, odor, or temperature; the production of a gas (bubbles) or a solid (precipitate); and the release of light.
200
What is the primary difference between physical change and chemical change?
Anything that does not change is physical change, and anything that changes is chemical change.
300
Is this following change physical or chemical change?
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This following change is Physical change.
400
What's the difference between a solid and a liquid?
A. The difference is that a solid has a definite shape and volume because its particles are tightly packed and only vibrate in place, while a liquid has a definite volume because its particles are less tightly packed and can slide past one another.
B. The difference is basically that liquid is liquid and solid is solid.
C. Liquid is like DHMO and solid is like frozen ice and both of them are the difference.
The answer is A. The difference is that a solid has a definite shape and volume because its particles are tightly packed and only vibrate in place, while a liquid has a definite volume because its particles are less tightly packed and can slide past one another.
500
Explain the difference between mass and weight?
Mass is amount of matter in an object, but Weight is the force of gravity acting on the mass.