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Atoms
Elements, Compounds, and Mixtures
Physical or Chemical Changes and Properties
Properties of H20
Weathering
100
the smallest part of an element, that still has the properties of that element
What is an atom
100
the force that holds atoms together
What is chemical bond
100
a change in matter that produces a new substance
What is chemical change
100
like a skin over the surface of water causing it to keep its shape as you add more drops
What is surface tension
100
breaking of rocks into smaller pieces
What is weathering?
200
protons and neutrons are found in the
What is the nucleus
200
matter is classified as
What is elements, compounds, mixtures
200
I cut an apple into pieces
What is physical change
200
water at 0 degrees Celcius
What is known as the freezing point
200
releasing pressure, freezing and thawing, plants, abrasion and animals
What are causes of mechanical weathering?
300
who do we know to be the English school teacher that developed the FIRST Atomic Theory
Who is Dalton
300
1) 2 hyrdogen and 1 oxygen atom bond to form 2) is it an element, compound, or mixture
What is a molecule of water, which is a compound.
300
process of water molecules changing from a liquid to a gas (1) and then a gas to a liquid (2) HINT: 2 answers
What is (1) evaporation (2) condensation
300
causes water to travel from one beaker of water, across a dry paper towel, and empty into an empty beaker
What is capillary action
300
the process that breaks down rocks through chemical changes
What is chemical weathering
400
electrons are found
What is in the electron cloud
400
two or more elemetns chemically combined together to form a
What is compound
400
texture, color, size
What is physical properties
400
only substance that exists in all three states of matter solid, liquid, and gas on Earth
What is water
400
type of rock and type of climate
What is the things that determine the rate of weathering
500
to determine the number of neutrons in an atom which two numbers do you use on the periodic table
What are the atomic mass and the atomic number
500
things found on the Periodic Table are made of only one kind of atom
What are elements
500
when chemical and physical changes occur this is changed
What is energy
500
water is able to dissolve many substances
What is a universal substance
500
water, oxygen, carbon dioxide (CO2), living organisms, and acid rain
What are causes of chemical weathering?