NEW
Font size
Worksheets“A Tale of Two Rocks” V. Jablow
Total questions: 10
Worksheet time: 20mins
What "two rocks" are at the center of this article?
stalagmites
quartz
breccia
obsidian
What "scientific bombshell" did the Alvarez's offer?
The Earth is round
The Earth is growing
The Earth has a giant asteroid crater on it
The Earth is magnetic
Where is the Chicxulub crater?
In the Arizona desert
Under the sea in the Yucatan Peninsula
In the snow field of Siberia
Under the sea near Europe
How was the Chicxulub Crater formed?
A large explosion of methane gas
An object crashing into Earth
The first atomic bomb
A large amount of quartz exploding
A magnetometer is
An instrument that measures the strength of magnets
An instrument that measures magnetic forces
An instrument that measures the height of mountains
An instrument that measures the depth of the sea
Anomalous means
Following a pattern
Consistent
Straight line
Inconsistent
Iridium is:
Common, soft metal
Rare silver-white, brittle metallic element
Rare white, soft metallic element
Rare gold-yellow, brittle metallic element
The metaphor "smoking gun" means:
Recently fired gun
Gun with a grey, cloudy finish
Absolute and final evidence that an event truly happened
Drawing a conclusion based on known facts
A tsunami is
Huge wave caused by an earthquake
Huge wave caused by an underwater methane explosion
Huge wave caused by the tidal changes
Huge wave caused by a large cruise ship
Sediment is
Matter that is a breath freshener
Matter that floats in liquid
Matter that settles to the bottom of a liquid
Matter that is magnetic
