Physical/chemical
Properties of matter that can be observed and measured without changing the chemical makeup of the material
Physical
What three components make up an atom?
Proton, neutron, electron
The first element on the periodic table is
hydrogen
Name the four seasons
Fall, summer, spring, winter
Properties of matter that can NOT be observed and measured without changing the chemical makeup of the material
Chemical
Which subatomic particle gives a positive charge
proton
The atomic number of an element is also equal to the number of ____________
protons and/or electrons
What causes the seasons?
Earth's tilt on its axis
Which of the following is NOT a physical change:
Ripping paper
Burning a candle wick
Melting ice
Boiling water
Burning a candle wick
which subatomic particle gives a negative charge
electron
The atomic mass of an element is equal to the
protons and neutrons in the atom
Earth's __________ around the sun takes _____ days or one whole year
revolution, 365 or 364.25
Which of the following is NOT a chemical change:
Tearing a shirt in half
Baking cookies
Dyeing hair
Hydrogen peroxide on skin
Tearing a shirt
which subatomic particle gives no charge
neutron
If an element has two valence electrons, it will most likely (give or take) electrons
give away
When the sun is tilted towards the sun, the season is
summer
Which of the following are listed incorrectly:
Making pancakes-chemical change
Cutting the grass-physical change
Melting chocolate-chemical change
Burning wood-chemical change
Melting chocolate
If an element loses an electron, the elements overall charge becomes more
positive
The compound H2O and CO2 are known as
water and carbon dioxide
when the sun is tilted away from the sun, the season is
winter