What main human activity caused Earth’s atmosphere to trap more heat?
Burning fossil fuels, Deforestation
What is the main source of Earth’s energy?
The Sun.
What do greenhouse gases do with heat energy from the Sun?
They trap it, keeping Earth warm.
What does density measure?
How tightly packed matter is within an object
What is a molecule?
a group of 2 or more atoms bonded together
True or False — If more sunlight is REFLECTED BACK into space, Earth’s temperature goes up.
False — it would make Earth cooler.
If the Sun’s energy output increases, what happens to Earth’s temperature and why?
It rises because Earth receives more solar energy.
Can gases like nitrogen and oxygen absorb infrared heat energy?
No
If two liquids don’t mix, which one will sink?
The one with higher density.
How many types of radiation exists?
3
Explain why more greenhouse gases in the atmosphere cause global temperatures to rise.
They trap heat energy and prevent it from escaping into space.
What happens to radiation in Earth's atmosphere?
It is either reflected or absorbed.
Name the gases that make up greenhouse gases
Carbon Dioxide, Nitrous Oxide, Methane
Liquid A has a density of 1.8 g/mL, and Liquid B has 0.7 g/mL. Which one will float?
Liquid B
When looking at molecular motion, what affect does temperature have?
Lower temperature = slower motion
When looking at deforestation and volcanic eruptions, which is more likely to cause a decrease in temperatures?
Volcanic eruptions
If more energy is RELEASED from the atmosphere instead of being absorbed, what happens to temperatures?
They would decrease
When a greenhouse gas releases heat energy, where can it go?
Earth’s surface, or out into space.
What is the mathematical equation to solve for density?
Density = mass/volume
Name the three types of radiation.
If the energy that enters Earth's atmosphere is the same amount of energy that is already existing, what happens to the global temperature?
It would remain the same.
How do changes in Earth’s orbit or tilt affect how much sunlight reaches the planet?
They change the amount and angle of sunlight, affecting seasons and climate.
Which TWO would MOST LIKELY cause an increase of temperature?
1. Changes in Earth's Tilt
2. Increased levels of greenhouse gases
3. Solar output
4. Volcanic Eruptions
Increased levels of greenhouse gases, solar output
What is the density of water?
1g/mL
During the Ice Age, the Earth was covered in ice which means there was less absorption of radiation in the atmosphere. Describe what that would mean for atmospheric temperatures?
It would be colder because heat from the radiation would not stay.