Cells
Cell Theory states that All living things are composed of cells. All cells come from pre-existing cells, and what?
Cells are the basic unit of life
What is the difference between weather and climate?
Weather is the current events of the atmosphere. Climate is the average of years of daily events in the atmosphere
Which statement describes a physical property of Hydrogen?
1. Hydrogen ions are found in acids
2. Hydrogen gas is highly flammable
3. Hydrogen ions react with oxygen ions
4. Hydrogen as is less dense than oxygen gas
4. Hydrogen is less dense than oxygen gas
This cycle utilizes the chloroplasts to take sunlight, carbon dioxide, and water to create Glucose and oxygen. Mitochondria then use the oxygen and glucose to extract ATP (active energy) and emit carbon dioxide and water as a waste product.
Carbon Cycle
What is the difference between Scientific Laws and Scientific Theories
Laws DESCRIBE WHAT happens. Theories EXPLAIN WHY it happens.
The two major different parts of Plant and Animal Cells are?
Plant cells are surrounded by cell walls and contain chloroplasts.
If the current conditions are warm, muggy, light rain, overcast skies, and windy, what can you infer the pressure system to be?
Low Pressure
If you boiled a pot of water, have you conducted a physical or chemical change?
Physical change. The H2O molecules are unchanged. Energy has just been absorbed by the molecules.
This cycle pulls the most prevalent element in our atmosphere into the soil where it is fixated to be used for plant growth and soil enrichment. Ammonification bonds this element with hydrogen and ionizes it to attach to plant roots for absorption. Through denitrification, it is returned to the atmosphere.
Nitrogen Cycle
The independent variable is placed on which axis of a graph?
X axis
What part of a cell is a storage unit or transport for waste products leaving the cell?
Vacuole
What is the main reason for weather (wind, ocean currents, humidity, etc)?
The uneven heating of earth by the sun.
What is Mass?
The amount of matter in an object or substance
Precipitation, evaporation, transpiration, runoff, and condensation are all part of what cycle?
Water Cycle
if you have an experiment to find how well certain soils affect the growth of tomato plants, what is the dependent variable?
The measure of growth.
Describe Mitosis vs Meiosis
Mitosis: Asexual reproduction. One cell divides itself into two identical cells
Meiosis: Sexual reproduction. Two parent gametes, or haploid cells, combine their unpaired chromosomes to form a new genetic combination in a zygote. This is how you create genetic diversity.
Hurricanes are associated with low-pressure regions in the atmosphere. How does the low pressure associated with a hurricane help them grow big and powerful?
A. Air in the atmosphere tends to move towards low-pressure regions, which would increase the winds surrounding a hurricane.
B. Low pressure regions push away other air in the atmosphere, which would make the hurricane bigger.
C. Low-pressure air heats up the water and therefore makes the hurricane stronger.
D. Low-pressure conditions include slow winds, which makes the hurricane stronger.
A. Air in the atmosphere tends to move toward low-pressure regions, which would increase the winds surrounding a hurricane.
Permanent change with a new substance.
What is formed during condensation in the upper troposphere?
Clouds
A student measures the weather at the same time each day for two weeks, varying between 30 -35 degrees Celsius. Then she claims that the climate of her area is tropical. Why is this not an accurate statement?
Two weeks is not enough data to declare Climate. Climate is comprised of years of daily atmospheric conditions.
Organism, Organ System, Organ, Tissue, Cell
Data collected at one location (usually airports or schools) that averages the atmospheric conditions over 30 years is called Climate (what)?
Normals
If you have an unknown material, with a volume of 2800 cubic cm, and a mass of 250 kilograms. What is the density of the material rounded to the nearest hundredth?
Convert kg into grams by multiplying the kilos by 1000, then divide 250,000 by 2800.
D=M/V
Density= 89.29 g/cm^3
What is the source of evaporation?
The sun
What happens to theories when new scientific data is discovered or presented?
The theory is adapted to accommodate new information.