Density
Mixtures and Pure Substances
Chemistry
Space!
Geologic Time
100

the density of water

1g/mL

100

Is silver (Ag) a compound or an element?

element

100

Is flammability a physical or chemical property?

chemical

100

What is the moon phase after the first quarter?

waxing gibbous

100

Geologic time is broken into large time spans called...

Eras

200

The density of an object with a mass of 55g and a volume of 11mL

5g/mL

200

Cereal in milk...

homogenous or heterogeneous?

heterogeneous

200

Two unknown substances are mixed and produce a gas. Is this a chemical or physical reaction?

Chemical

200

what type of eclipse occurs when the moon passes between the sun and the Earth

Solar eclipse

200

Alfred Wegener unsuccessfully argued that

The continents drifted over time

300

The density of 144g of sand occupying a volume of 12 cubic cm.

12g/cm3


300

water (H2o) and salt (NaCl) are mixed in a jar. Is this a mixture of pure substances or a mixture of compounds?

Mixture of compounds

300

The products of two reactants create new bonds. Chemical or physical reaction?

Chemical

300

What type of object might you find in the Oort Cloud

Long-period comets

Icy bodies

300

Name one piece of evidence for continental drift (besides fitting together like puzzle pieces)

Fossils, mountain ranges of the same consistency across continents

Warm climate fossils found in polar regions and vice versa.

400

How would you determine the density of a rock you found at the side of the road?


Measure its mass on a scale

Find its volume by adding a fixed amount of water to a graduated cylinder, then add the rock and record the difference in volume. 

400

C6H12O6

element, compound or mixture?

compound

400

The temperature of the products of a reaction is less than the temperature of its reactants

endothermic or exothermic reaction?

endothermic

400

The Earth and Moon both rotate in this direction

Counterclockwise 

400

Rock strata are dated using the rule stating that higher layers are younger and lower layers are older. What law is this?

The law of superposition

500

If a twig from an oak tree and and an entire trunk from the same tree float in water, which one will float higher?

They will float the same amount

500

Sugar is dissolved in water

Heterogeneous or homogenous mixture

homogenous

500

The products of a chemical reaction contain more energy than the reactants. Endothermic or exothermic reaction?

endothermic reaction

500

After the big bang created all matter in the universe no matter has been created or destroyed. Where does most of the matter that makes up you and me come from?

The sun

500

If a single rock strata is divided by an erosive force such as a river, we can assume that the two sides can be compared (they are the same). Which law is this?

The law of lateral continuity.