Variables and Heat
This is the variable you change in an experiment
Independent
The main gas in the atmosphere of Mars
Carbon Dioxide
Climate or weather:
75 degrees and sunny
Weather
this is the most used non-renewable energy in 2024
natural gas
The name for the center of a tree
Pith
This is the variable you measure in an experiment
Dependent
Rocks from ______ gave us a better idea of the age of the earth. Meteorites were also used
the moon
This process removes CO2 from the atmosphere
photosynthesis
This is the most used renewable energy in 2024
nuclear
Unequal heating creates
wind
This is the variable you don't change and try to keep consistent
Control variable
This era is known as the age of reptiles
Mesozoic
This activity contribute the most to carbon emissions
Burning fossil fuels
Steam is created to spin __________ which then spin the generator
turbines
What mineral do we use to date the oldest rocks?
Zircon
This type of heat transfer:
touching something hot
conduction
This is the coldest layer of the atmosphere
mesosphere
We know CO2 levels and temperatures from 400,000 years ago because of these
Ice Cores
This is a type of magnet that you can turn off
Electromagnet
You pick up a can of soda off of the countertop. The countertop underneath the can feels colder than the rest of the counter. Which explanation do you think is the best?
Some heat has been transferred from the counter to the soda.
Rule of Heat Transfer:
Energy moves from _____ to _____
Hot to cold
What causes the temperature to rise in the stratosphere?
Ozone layer
The process where plants breath out water vapor
Transpiration
Name two raw materials that can be used to make a permanent magnet
Iron
Cobalt
Nickle
How much time would be required for an 12 kg sample of Uranium-238 to be reduced to 3kg of Uranium-238?
9.0 billion years