The Big Bang
The theory that all matter was once a hot dense state and expanded in all directions.
What color are the hottest stars?
What is... Blue
German astronomer who studied the motion of objects in space. He is best known for his laws on planetary motion.
Who is... Johannes Kepler
Which of Earth's Layers is the LEAST dense?
What is... The Crust
The amount of time it takes for half of the isotopes to decay into other elements
What is... Half-Life
What were the first two elements formed after the big bang.
What is... Hydrogen and Helium
This process in the core of the sun combines 2 nuclei to form 1. Immense heat and pressure is released.
What is... Nuclear Fusion
All planets orbit the sun in what shape?
What is... an Ellipse
Earth's Layers are organized by what?
What is... Density
Absolute Dating uses what to find the age of certain isotopes?
What is... Actual Numbers
What is... Faster
When a main sequence star runs out of hydrogen fuel. It will expand and cool into what?
What is.. A Red Giant
When an ellipse becomes more elongated (flat) it is said to have what?
What is... Eccentricity
This Law states that younger rocks lie above older rocks if the layers have not been disturbed
What is... Law of Superposition
The stable element which is a product of decay is known as...
What is.. Daughter Element
In space, if something is moving away from us, it is shifted towards what side of the spectrum?
What is... Red Shifted
Stars spend most of their lives in this stage.
What is... The Main Sequence.
What is.. Decreases
This type of wave can only move through solids.
What is... S-Waves
he original element which decays over time is known as..
What is... Parent Element
The leftover "glow" from the big bang is called what?
What is... Cosmic Microwave Background (CMB)
This diagram classifies stars based on their luminosity and temperature.
What is... Hertzsprung Russell (H-R) Diagram
When Earth is farthest away from the sun, this is called what?
What is... Aphelion
P-Waves can move through what states of matter?
What is.. Solids and Liquids
29. Carbon-14 has a half-life of 5,730 years. How old is a fossil that has gone through 4 half lives?
What is... 22,920 years old