Heat/Friction
What is the transfer of heat through direct contact called?
Conduction
What do you call the flow of electric charge?
current
What part of the wave determines how loud a sound is?
Amplitude
What gas do plants take in during photosynthesis?
Carbon dioxide
Give the correct term:
An area of land where all water drains into a common body (like a river or lake)
watershed
Which direction does heat always flow?
From hotter to colder areas
What kind of charge does a proton have?
Positive
What happens to the pitch of a sound as the frequency increases?
The pitch becomes higher
What is the main product of photosynthesis that plants use for energy?
glucose (sugar)
Why are wetlands important to watersheds?
They filter pollutants and reduce flooding
What is the name of the process by which heat is transferred through fluids (liquids or gases) by the movement of the fluid itself?
Convection
increase resistance or add a stronger resistor
What travels faster: light or sound?
Light
In which organelle does photosynthesis occur?
Chloroplast
What happens to a river’s discharge after a heavy rain?
It increases
What force opposes motion between two surfaces?
Friction
What happens when you break a magnet in half?
You get two smaller magnets, each with a north and south pole
What is the term for light bouncing off a surface?
Reflection
What do we call living things that make their own food?
producers or autotrophs
What is sediment made of?
Any of the following are correct:
Small particles of rock, soil, and organic matter
Name one way to reduce friction between two surfaces.
Use lubricants (like oil or grease)
What is the formula for voltage?
V = I x R
Voltage = current x resistance
What type of wave is a sound wave?
Longitudinal wave
What is the role of a decomposer in an ecosystem?
Break down dead organisms and recycle nutrients
What can happen to aquatic life if too much sediment enters a stream?
It can smother habitats and reduce oxygen levels