Labs
Draw a picture of the location of the two fire extinguishers and two eye wash stations around the room.
See drawings
What is the definition of chemistry?
The science of matter and change of matter.
The Universe is expanding, shrinking, or staying the same size.
What is expanding?
The sequence a medium size star go through in their life.
What is main sequence, red giant, planetary nebulae, and dwarf?
What is the "Raisin Bread" analogy?
A reference to the idea that the universe is expanding, and hubble's law.
What lab practices should be followed when open flames or chemicals are being used? List 3.
What is 100,000 light years?
What is the difference between organic and inorganic chemistry?
Organic chemistry has to do with carbon. Inorganic chemistry has to do with elements specifically not carbon.
The time in years ago the big bang occurred.
What is 13.7 billion years ago?
The type of star the size of Earth.
What is a dwarf star?
The life cycle group the Sun is currently classified in.
What is main sequence/ yelllow dwarf?
What chemical do you think Unknown 1 and Unknown 2 were? What is your evidence?
Unknown 1: Calcium
Unknown 2: Sodium
Alchemists were people who...
Turned common metals into gold, except not. They also practiced rudimentary versions of medicine.
All objects in the universe have this color light emission to varying degrees.
What is red shift?
The element that is created in main sequence stars, like our sun.
What is Helium
The universe is made of 75% Hydrogen and 24% Helium, but stars have only made 2% of this. How does the big bang theory explain how this happened?
The big bang fused hydrogen atoms together into helium, making much of the helium in the universe today.
-For the bunsen burner lab, which part of the flame was the hottest? Why do you think this is?
The tip of the smaller blue cone in a double cone flame - the heat has a chance to concentrate here before dissipating to the room.
In order, describe if each of these chemicals are organic or inorganic.
1) C6H12O6
2) H2SO4
3HClO3
1) Organic
2) Inorganic
3) Inorganic
The type of shift when objects are coming toward the Earth.
What is blue shift?
What cosmic events create elements up to carbon and oxygen?
What are red giant stars?
The color of a cool burning star vs the color of a hot burning star.
What is red / blue
In the flame test lab, why did we use the diffraction gradients? Many answers are sorta correct, but only detailed and accurate ones will be taken.
The diffraction gradients were used to split the light from the chemicals into their component
Analytical chemistry is the study of different types of matter. What measurements did we use regarding analytical chemistry to determine that our gold pennies were not gold?
We compared the density of the penny with known values to debunk the gold penny hypothesis.
Another piece of evidence for the Big Bang Theory other than red shift.
Abundance of Helium in the universe
What elements are made in planetary nebulae, and what elements are made in supernovas?
Nebulae - up to Iron on the periodic table
Supernova - all elements up to Uranium, the heaviest element that is naturally occurring.
How long does the Earth have until the sun begins to die, turns into a red giant, and engulfs the inner planets?
6 Billion Years.