Biology
Where does chemical digestion begin in the digestive process
Chemical digestion begins when saliva is released in the mouth.
What is the name of the following compound?
Mg3(PO4)2
Magnesium phosphate
When a lightray that is traveling parallel to the principal axis hits a concave mirror, where will it reflect?
Through the focal point
Where does the heat energy that causes global warming originally come from?
The sun
What is the chemical formula for Sodium Hydroxide?
NaOH
What is the primary purpose of red blood cells
Carry oxygen to the body.
(also takes carbon dioxide to the lungs to be exhaled)
What is the chemical name of a compound that is formed with 2 sulfurs and 2 florines?
disulfur difluoride
How does the speed of light change when it enters a medium with a high index of refraction?
It slows down
What term is used to describe the short term atmospheric conditions of a specific area?
Weather
This is the general formula for what type of reaction?
AB + CD → AD + CB
Double Displacement
This organelle contains most of a cell’s DNA
Nucleus
What do elements in the same family of the periodic table have in common?
Similar reactivity, same number of valence electrons
When a ray of light refracts at an angle of 90 degrees relative to the normal it has reached what?
The critical angle
True or false?
Climate change is a natural phenomenon and has occurred throughout Earth's history independent of human activity
True,
However human activity has increased the rate of climate change
What are the 4 stages of mitosis in order?
PMAT
Prophase, Metaphase, Anaphase, Telophase (and cytokinesis)
Aside from capillaries, what are the two types of vessels in animals and what do they do?
Arteries carry blood away from the heart.
Veins carry blood to the heart.
What are the products of a combustion of a hydrocarbon?
Carbon dioxide and water
When light passes through the focal point before hitting a converging lens, where will the light ray refract?
Parallel to the principal axis
What is one way that climate change will impact weather?
Increased frequency and intensity of storms
What is the speed of light?
About 300,000,000 m/s
Oxygenated blood from the lungs moves from the pulmonary vein into which chamber of the heart?
The Left Atrium
What would you expect the products to be if you mixed an acid and a base? What is this reaction called?
Neutralization,
An aqueous salt and Water
How does the angle of a light ray change as it passes from a dense substance (higher n value) into a less dense substance (lower n value)?
The angle of refraction is greater than the angle of incidence.
(Further away from the normal)
What is one way that climate change will impact food?
Increase drought leading to water shortage for crops, Increased temperature lead to monocrops, minimizing diversity. Invasive pests and insects may become more resilient
What are two possible chemical formulas for iron oxide?
FeO, Fe2O3