Chemical and Physical Reactions
Metals, Metalloids, and Nonmetals
Elements, Mixtures, and Compounds
Earth's Different Spheres
Mass, Volume, and Density
100
What is the term for a change to a substance where it doesn't form a new substance?
Physical change
100
What type of elements are the ones that are typically gaseous, brittle, dull, and non-conductive?
Nonmetals
100
What is the name for a substance made up of only one type of atom?
Element
100
What is the name for the sphere that contains Earth's living things?
Biosphere
100
What is density?
The measure of how compact a substance is; mass compared to volume.
200
Is butter melting a chemical or physical change?
Physical
200
A mysterious substance is shiny, conducts electricity, and is very ductile. Is it most likely a metal, metalloid, or nonmetal?
Metal
200
Is SO an element or compound?
Compound
200
Which sphere covers the entire planet, and is solid and rocky?
The lithosphere
200
What is the formula for density?
D = M/V
300
Which change is not a physical change? a. freezing water to make ice cubes b. melting gold to make jewelry c. burning gasoline in a lawnmower d. boiling water for soup e. tearing a piece of aluminum foil
c. burning gasoline
300
Where are the metals located on the periodic table?
To the left of the zigzag line
300
What is it called when a substance or object has two or more elements and/or compounds that aren't chemically combined?
A mixture
300
What is the most common element in the atmosphere?
Nitrogen
300
What is the formula for mass when you have density and volume?
M = DV
400
You put a piece of bread in the toaster to make toast, but you leave it in too long, so it becomes black and smelly. Is this a physical or chemical change?
Chemical
400
What type of element (metal, metalloid, or nonmetal) is nitrogen? (Don't look at the periodic table.)
Nonmetal
400
What is a pure substance?
A substance made of chemically bonded atoms
400
What sphere is the ice at the North Pole a part of?
The hydrosphere (or the cryosphere)
400
How do you find volume using water displacement?
You put the object in water with known volume, and see how much water it displaces.
500
Which of these properties are chemical properties? a. red color b. 67 g/mL c. highly flammable d. reacts with acid to form hydrogen e. melts at 708 degrees celcius f. reacts with oxygen to form rust g. shiny luster h. tastes gross
c. highly flammable d. reacts with acid to form hydrogen f. reacts with oxygen to form rust
500
What type of metal is lithium (don't look), and where is its group located on the periodic table?
The alkali metals are located at the far left of the periodic table, right under hydrogen.
500
Which ones of this list are compounds? a. Diamond b. Air c. Krypton d. Water e. Ammonia f. Wood g. Sugar h. Dry Ice I. Energy
d. Water e. Ammonia g. Sugar h. Dry Ice
500
Why do the spheres (Lithosphere, hydrosphere, atmosphere, and biosphere) have the names they do?
Because... litho = stone atmo = air hydro = water bio = life
500
How much wood would a wood chuck chuck if a wood chuck could chuck wood?
A wood chuck would chuck all the wood he could if a wood chuck could chuck wood. (I ran out of ideas. This doesn't count for points.)
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