CHEMISTRY
The modern periodic table has the elements arranged in order of increasing...
Atomic Number
Which of the following is ABIOTIC...an insect, a frog, a rock, you, a bee?
A rock
Chunk of rock, metal, or both that is shed from an asteroid or comet
Meteoroid
Unit of current
AMP
CHEMISTRY....What is the chemical formula for water and then Carbon Dioxide?
H20 and C02
What does the mass number of an element indicate
The number of protons, electrons, and neutrons
Which of the following is a biotic component of an ecosystem.. nutrients, rocks, soil, water, or bacteria?
Bacteria
What is a solar eclipse?
An event where the moon moves directly between the sun and earth, so that the moon casts its shadow on part of earth
A material in which electrical charges can move easily
Conductor
What is a lunar eclipse?
An event where the earth moves directly between the sun and moon, so that earth casts it's shadow on the moon
Describes how substances can change to produce new substances with new properties when they interact with other substances
Chemical Property
Which term best describes a chemical that is essential to living things and is cycled through a system..... ecosystem, nutrient, biosphere, biotic component?
Nutrient
A rocky object, located in the region between the orbits of Mars and Jupiter, that orbits the sun
Asteroid
What does it mean when something is electrically neural?
Having equal number of positive charges and negative charges
ECOLOGY....A process in the cells of plants, algae, and some bacteria that converts light energy from the fun into stored chemical energy
Photosynthesis
An insoluble solid substance that can form when certain dissolved substances are mixed together
Precipitate
Which limiting factor is biotic....soil temperature, water temperature, population size of predators, intensity of sunlight?
Population size of predators
What is an asteroid belt?
The region of the solar system where most asteroids are located, contains rocky chunks of various sizes that orbit the sun between the orbits of Mars and Jupiter
What does grounding mean?
Connecting a conductor to earth's surface so that charges can flow safely to the ground
Instrument that measures current in a circuit
Ammeter
Identify the element of the following position...Group 14, Period 3 and state the name and symbol of the element
Silicon
When a population is maintained at its carrying capacity it is said to be....
In equilibrilum
Order of the planets from the sun
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus Neptune
Difference between and non renewable or renewable energy source?
Non renewable: Energy source, such as fossil fuels and uranium that cannot be replaced or restocked within a human lifetime, or longer
Renewable: Energy Source such as moving water, that can be replaced or restocked within a human lifetime, or less
ELECTRICITY....Change in the energy of a unit of charge after passing through a source or a load
Potential Difference