Atoms
What are the 3 parts of an atom?
Protons, neutrons, and electrons
What kind of change took place (physical or chemical) when we made Goo?
a chemical change
What is the definition of matter?
Anything that takes up space and has mass.
What are the 3 states of matter?
Solid, liquid, or gas
Matter that is less dense than water will sink or float?
Float
The electrons What part of an atom has a negative charge?
The electrons
What kind of change (physical or chemical) takes place when we burn wood?
a chemical change
What is the definition of a vacuum?
the absence of matter
True or False:
Matter is made up of elements
True
Matter that is more dense will sink or float?
Sink
What part of an atom has a positive charge?
The protons
What kind of change (physical or chemical) takes place when we boil water?
a physical change
What is the Table of Elements called?
The Periodic Table
Anything that takes up space and has mass is called _____.
Matter
Why does a boat float?
It is made less dense by it's space being filled with air
True or False:
All the atoms of a single element are the same.
True
True or false:
A chemical change happens when new matter is formed.
True
What is Volume?
The amount of space that an object occupies (or takes up) is called its ____________.
What is a compound?
Two or more different elements
What is mass?
the amount of matter in an object, similar to weight
The center of an atom is called the ________.
Neucleus
True or False:
A physical change happens when new matter is formed.
False:
A physical change happens when new matter is formed.
What is a molecule?
two or more atoms joined together
Give an example of a compound.
Water, Carbon Dioxide, (teacher to decide
What is density?
a measurement of how tightly packed the molecules of an object are