Grade 9 Science Q3 Reviewer

What kind of volcano is formed from cinder and ash?

• composite

• cinder

• explosive

• non-explosive

Which of the following stars is the brightest?

• Betelgeuse

• Polaris

• Rigel

• Sirius

What is missing in the sequence below? geothermal ________ turbine generator

• chemical

• magnetic

• potential

• steam

What energy source provides 14.4% for heating, cooling and electricity use in the Philippines?

• geothermal

• coal

• petroleum

• wind

Which volcanic eruption characterized by fountain of lava?

• Phreatic

• Strombolian

• Plinian

• Vulcanian

Stars can be found in large groups forming certain patterns throughout the universe. What are these groups called?

• asteroids

• comets

• constellations

• solar system

Which would be the best place to generate electricity underneath the earth's surface?

• a place with volcanoes

• a large fast river

• a calm lake

• a city with lots of rain

How do fishermen benefit from an upwelling?

• there are drastic water changes

• fish go to the surface to feed

• fish are more attracted to bait

• ocean salinity is just enough so no big harmful waves are formed

What is the first step to generate electricity in the geothermal power plant?

• steam spins a turbine

• the cooled water is pumped back into the earth

• wells are drilled deep into the earth to pump steam or hot water

• when water reaches the surface, the drop in pressure caused the water to turn into steam

Which atmospheric condition that occurs in a region for a long period of time?

• Climate

• El Niño

• Weather

• La Niña