Anything that has mass and takes up space is known as?
Matter
What is matter made up of?
Smaller particles.
Physical or chemical? Cutting a paper is an example of _____ change.
Physical
Chemical changes happen when two or more substances are mixed and a _______ is formed.
New substance
What is chemistry?
The scientific study of what matter is made of and how it changes.
People can use ___ to describe and identify matter.
Properties
False.
During physical changes, the matter is always _____.
Conserved
When a chemical change occurs, the total amount of matter is ____.
Conserved.
Matter is made up of particles that are too small to be seen. They are often called the building blocks of matter. What do scientists call them?
Atoms
Describe solubility and give an example.
The ability of a substance to dissolve. Ex: Sugar in lemonade.
True or false: Air is matter.
True
What are the three states of matter?
Solid, liquid, gas
What is an example of a chemical change?
Match being lit, ice pack being activated, glow stick, engine exhaust, digestion, etc.
Matter made up of a single type of atom is called...
Element
Name three properties of matter.
Color, hardness, reflectivity, electrical conductivity, thermal conductivity, magnetism, solubility.
Scientists use __ to demonstrate scientific concepts like atoms and molecules.
Models.
Give an example of a physical change.
Slicing bread, melting ice cube, cutting paper, etc.
Formation of gas, chance in color, change in odor, chance in temperature, emission of light, precipitate forming.
What is true about all the atoms in an element?
They are identical/the same
Explain how evidence can be used to describe matter.
Observations about the physical properties of matter can be used to determine and describe types of matter.
What evidence do scientists have that matter is made of particles that are too small to be seen?
Inflating a balloon, observing condensation, exporting liquids, dissolving a substance.
True.
Name every indicator that a chemical change has occurred when a match is lit.
Change in temperature, change in odor, emission of light, release of gas.
_____ forms when atoms join together with other atoms.
Molecules