SPACE
What kind of celestial body is the Sun?
A star
What is the main difference between magma and lava?
Magma is underground; lava is on the surface
What often happens with technology during times of war or conflict?
Technological development speeds up
Which word means a species is in danger of extinction?
Endangered
What makes redwoods unusual compared with most other plants?
They can grow extremely tall and live for a very long time
Planets move around the Sun in paths called...
Orbits
Which type of volcano is most commonly associated with explosive eruptions?
A) Shield volcano
B) Rift valley volcano
C) Mid-ocean ridge volcano
D) Stratovolcano (composite volcano)
Stratovolcano (composite volcano)
What was one of the earliest ways messages were delivered during battle?
Hint: In our class, it was the earliest human method discussed.
Human runners carrying written messages
Why is the passenger pigeon an important example of a species going extinct?
It shows that a species can go from very common to extinct in a relatively short period of time
Why might one tree ring be narrower than another?
Growth may have been slower under less favorable conditions
Gravity is best described as a force that…
Pulls objects toward one another
What is the main difference between magma and lava?
Magma is underground; lava is on the surface
What invention invented in the 1800s allowed messages to travel quickly through electrical wires?
Telegraph
What is a mass extinction?
A major increase in extinction over a geologically short time
What is one thing tree rings can help scientists estimate?
The (relative) age of the tree
What are the three rocky planets nearest to the Sun?
Mercury, Venus, Earth
Thick magma often traps which substance inside it?
Gas
What does GPS stand for?
Global Positioning System
Which mass extinction is widely recognized as the most famous?
End-Cretaceous
Why is climate change a threat to redwoods?
We are looking for 3 factors...
It can change temperature, moisture, and fire conditions
Orbiting Earth requires an object to...
Fall toward Earth while moving sideways fast enough to miss it
As magma rises toward Earth’s surface, pressure:
Decreases
Why were early computers developed during wartime?
To help with complex calculations and code breaking
What does direct exploitation mean in the context of our Extinction unit?
Humans taking too many organisms through hunting, fishing, or trade
Why does thick bark help a redwood survive?
2 factors...
It helps protect the living tissue inside the tree from heat and damage