Big Bang Evidence
Big Bang Physics
Stars
Climate Change
Carbon Cycle
100
What is the most widely accepted theory about the origin of the universe?
Big Bang Theory
100
What was the most popular theory for the universe expanding before the Big Bang theory?
Steady State Theory - matter has always been created and destroyed over time with no particular direciton
100
List at least 3 of the 5 stages of the life cycle of a small star.
Nebula, protostar, red giant, white dwarf, black dwarf
100
What is the greenhouse effect?
Certain gases in our atmosphere trap additional heat and radiation from the sun on Earth, causing changes in the Earth's temperatures and climate.
100
What is the reaction plants do to make their own food from atmospheric carbon dioxide (CO2)?
Photosynthesis
200
What is the commonly accepted date (or range) for when the Big Bang took place.
13-15 billion yrs ago
200
Ever since the universe began, the universe has been doing this.
Expanding
200
What are the 2 elements that are Sun is currently made of?
Hydrogen & helium
200
List the 2 greenhouse gases we produce in excess on Earth
Carbon dioxide (CO2) and methane (CH4)
200
What is respiration?
The reaction living organisms do to break down sugar for energy, releasing waste carbon dioxide (CO2) through breathing
300
This piece of evidence for the Big Bang Theory has something to do with leftover radiation from the beginning of the universe.
Cosmic Microwave Background Radiation
300
When we look at distant stars, are we seeing them in the past or the future?
Past (their light takes so long travel to us here on Earth)
300
How long can a red giant live for compared to a supergiant star?
Red giants live for billions of years, supergiants only live for millions of years.
300
True or false: the climate on Earth has always been changing?
True
300
What is combustion?
The reaction of burning carbon-based fuel to release carbon dioxide (CO2)
400
What is the compression or expansion of light/sound waves as it travels towards or away from the observer?
The Doppler Effect
400
Order the following events from oldest to youngest:
a. galaxies appear, b. orange light appears, c. stars form
1. b
2. c
3. a
400
What do collapsing supergiants form as they exude great amounts of energy?
More heavy/complex elements such as iron, iodine, xenon and gold
400
How can tectonic plates affect ocean currents?
Tectonic plates move and change location causing the water to move differently around them.
400
When did greenhouse gas emissions increase?
Late 1800s during the industrial revolution (steam engines powered by coal, invention of cars)
500
Most distant galaxies show a RED SHIFT. This is considered EVIDENCE of that the universe is ___________.
Expanding
500
What elements were formed at the start of the universe?
Hydrogen (H) and helium (He)
500
How has understanding star life cycles improved our understanding of the creation of the universe?
Some elements can only be created during the birth or death of a star explaining how we can have so many more elements than just Hydrogen and Helium that was created at the Big Bang
500
How does excess carbon dioxide (CO2) affect the ocean?
Can dissolve into the ocean and make it more acidic
500
What period in Earth's history produced the plant matter that fossilised into coal and oil over millions of years?
Carboniferous period (359-299 million years ago)