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WorksheetsEcology/Chemistry
Total questions: 25
Worksheet time: 24mins
What is the identifying characteristic of an atom?
Electrons
Neutrons
Protons
Valence Electrons
What is NOT true about adaptions...
They are more likely to happen from a long-term change than a short-term one
They are only traits and never learned behaviors
They happen over a long period
They happen quickly
What is the only information you need to determine what Element an atom is?
What it reacts with
Protons
Neutrons
How reactive it is
What happens when resources are depleted?
Organisms thrive
Competition and organisms die
Organisms adapt to stay alive
All organisms leave
What is NOT an indicator that a chemical reaction has happened?
Shape
Bubbles
Color change
Precipitate
Artificial Reefs are made to...
To pollute the ocean
Preserve marine life
To cause a decline in organisms
Preserve ships
Over fishing causes
Increase in fish
More biodiversity
Decrease in fish
No change
What is an adaptation?
Any trait
A trait an organism gets because it wants that trait.
A trait that helps an organism survive
Any characteristic passed down from parent to offspring
What is an abiotic factor that all living things need in order to survive?
Water
Grass
Plastic
Omnivores
Runoff pollution occurs when...
People put trash in the ocean
contaminated water from the ocean runs into farm land
Chemicals from farms, oil rigs, ect. run into lakes and rivers
You sink ships that have been cleaned
What is a reactant?
Molecules that react with each other to create something new.
The new substance that is made by a chemical reaction.
What is on the right side of a chemical equation.
Something that is reactive.
What is a product?
Molecules that react with each other to create something new.
The new substance that is made by a chemical reaction.
What is on the left side of a chemical equation.
Something that is not reactive.
What describes the relationship between a rabbit and a fox?
herbivore/primary consumer
secondary consumer/producer
producer/carnivore
primary consumer/ secondary consumer
Does this equation follow the Law of Conservation of Mass? C2 + (OH)3 --> CO2 + COH3
Yes
No
How many atoms of Oxygen are in C(SO3)2
1
3
6
4
What makes up the Atomic Mass of an element?
Protons and Electrons
Protons and Neutrons
Neutrons and Electrons
Only Protons
# of Valence electrons can be found by...
Looking at the second orbital
Atomic #
Last digit of the group/family number
Atomic mass (rounded) minus the Atomic #
What is NOT a way we depend on the Ocean?
Tourism
Food
Travel
None of the above
Which atomic model represents Carbon?
How can you tell the Valence Electron number from an atomic model of Carbon?
Count all of the electrons
Subtract the Neutrons from the Protons
Count the electrons in the outermost shell.
Count the electrons in the shell closest to the nucleus
What is the correct PEN of Magnesium?
P=12 E=12 N=12
P=12 E=13 N=12
P=13 E=12 N=12
P=12 E=12 N=13
Is Lithium or Carbon more reactive? Why?
Carbon, it has more electrons
Carbon, it has to gain 4 valence electrons to be happy
Lithium, it has to lose 1 valence electron to be happy
Lithium, it has less electrons
What is/are the product(s) of this equation? H2 + O --> H2O
Water
Hydrogen and Oxygen
According to the Law of Conservation of Mass...
The number of atoms of each element is greater on the reactant side than the product side of a chemical equation.
During a chemical reaction, mass can be lost.
There are less atoms in the products than the reactants.
The number of atoms of each element in a chemical reaction must be the same in the reactants and products.
There are Lions, Tigers, and Bears in the same forest. They all eat fish.
This causes two of the three species to die off
This causes two of the three species to move to a different area
There will be competition for fish
Two of the three will stop eating fish
