Matter
Give an example of a solid.
Shoe, backpack, computer, etc.
A substance that cannot be changed or separated into other kinds of substances describes _____________.
Element
Give an example of a compound.
Water (H₂O), Carbon dioxide (CO₂), Salt (NaCl), etc.
Give an example of a liquid.
Soda, hot sauce, apple cider, etc.
What is the symbol for helium?
He
Give an example of a mixture.
Air, salt water, salad, etc.
Give an example of a gas.
Argon, nitrogen, smoke, etc.
How many protons are in an atom of oxygen?
8
The formula for water is H₂O which means it has how many hydrogen atoms?
2
Burning wood and turning it to a new substance, ash and smoke, is an example of a _____.
Chemical change
Li is the symbol for what element?
Lithium
The formula for silicon dioxide (a type of sand) is SiO₂ which means it has how many silicon atoms?
1
Anything that has mass and takes up space.
Matter
How are elements different from one another?
They each have different number of protons.
The formula for sucrose (cane sugar) is C₁₂H₂₂O₁₁ which means it has how many oxygen atoms?
11