A chemical change involves a __________ reaction.
LIQUID
CHEMICAL
PHYSICAL
Some solids like salt, sand or flour can move like liquids.
FALSE
TRUE
Particles are packed very closely together and have fixed position. This gives solids a fixed volume.
TRUE
FALSE
A SUBSTANCE is made up of only one kind of matter.
TRUE
FALSE
Particles are always moving and ______________
SINGING
VIBRATING
CHANGING COLORS
____________ are so tiny that we cannot see them.
PARTICLES
SOLIDIFICATION
MATERIALS
__________ are packed close together while __________ particles are not as close together.
LIQUID / SOLID
SOLID / LIQUID
When some substances mix, they can interact or react to form a new reaction. This is called a _________ __________
OVER REACTION
LAST ACTION HERO
CHEMICAL REACTION
A __________ is the matter that something is made of.
SPAGHETTI
PARTICLES
MATERIAL
Chemical reactions can be used to make helpful things we use everyday, such as __________
WOOD
SUNLIGHT
PLASTIC
Are these particles SOLID or LIQUID?
LIQUID
SOLID
When water is frozen into ice, this is called ___________
MELTING
PARTY TIME
SOLIDIFICATION
Liquids are particles that are not packed as closely together as a solid.
TRUE
FALSE
A MATERIAL is the matter an object is made from. A SUBSTANCE is made from one type of matter. And all matter is made up of ___________
PARTICLES
SOLIDS
LIQUIDS
A solid changing into a liquid is called __________
SOLIDIFICATION
MAGIC
MELTING
When butter melts, it changes _______, ________, and _________.
SIZE, SHAPE & APPEARANCE
APPEARANCE, ACCENT & LIFE GOALS
SHAPE, ATTITUDE & DREAMS
When a soild is heated, it's particles _________, moving faster & farther apart, leading to melting.
EXPLODE
VIBRATE
Materials are made of MORE THAN ONE kind of matter.
TRUE
FALSE
Are these particles SOLID or LIQUID?
SOLID
LIQUID
When a liquid is cooled, it's particles get MORE heat, and move closer together.
FALSE
TRUE
In a physical change, __________ new substances are made.
NO
MANY