Matter Lessons 12-15 Flashcards
A property that allows some objects to be ________________ by a ______________ is called magnetism.
attracted
magnet
A combination of two or more materials
Mixture
Separate
To remove something from a mixture
Sort
To separate objects into groups with similar properties
A _____________is a mixture in which one material (solid) combines with another (liquid) until you cannot tell one from the other.
solution
What is a change to a material in which a new material with new properties is formed?
Chemical change
What is a physical change?
A change to the size, shape, or state of a material where the material remains in the same state of matter.
To ____________ is to mix one material (solid) with another material (a liquid) to create a solution.
Dissolve
What is the difference between a physical and a chemical change?
A physical change means something changes it’s property but the substance itself still exists.
A chemical change means different things come together to make a completely new material
Which is sometimes reversible, a physical change or a chemical change?
Physical changes are sometimes reversible.
Is sugar dissolved completely into water a physical or a chemical change?
physical
Is mixing vinegar and baking soda an example of a chemical change or a physical change?
it is a chemical change because:
the mixture creates a new material, gas (carbon dioxide)
Name an example of a physical change
water changing to ice
boiling a liquid to create a gas
changing the shape of clay
breaking an egg into a bowl and mixing the white and the yolk.
Name an example of a chemical change
Rusting (iron mixes with oxygen and water to make a new material)
Burning (fire mixes with wood and oxygen to create new materials; ash and smoke)
digesting food
