Chemistry
open
ecosystem
open
populations
100

This is an interaction during which starting substances change into new substances.

What is a chemical reaction

100

This organism gets its energy by decomposing organic material.

What is bacteria and fungi

100

This is a all of the feeding relationships in an ecosystem.

What is a food web

100

This happens when a open-celled foam piece is put into a syringe with an end clamped and the plunger is pushed down.

What is the foam stays the same

100

This is all of the individuals of one kind in an area at one time.

What is a population

200

This is an atom with an overall positive or negative charge.

What is an ion

200

This occurs as a result of a chemical reaction.

What is, a new substance is formed.

200

Spanish moss is a plant that grows upon the branches of other plants.  The Spanish moss benefits by being exposed to sunlight.  The other plant is usually not affected.  This is an example of what type of relationship.

What is Commensalism

200

This happens to the particles in an object when it is heated.

What is the particles get farther apart when they are heated

200

This is living organisms and products of living organisms.

What is biotic

300

Materials usually do this when they get cold.

What is contract

300

Which of these is an example of a biotic organism,

light or snails.

What is snails

300

How is plankton beneficial to humans?

What is, it provides food for fish, which humans eat.

300

How do you make a saturated solution of salt and 70ml of water?

What is add salt and stir until no more dissolves

300

This is an example of a primary consumer that gets its energy through eating

What is birds

400

An atom of lithium has an atomic number of 3 and an atomic mass of 7.  The atom has no electrical charge.  This atom has how many of each subatomic particles?

What is 3 protons, 4 neutrons, and 3 electrons

400

This is the type of electrical charge neutrons have.

What is neutral

400

Which of these two animals is considered a producer, 

eagle or vegetation?

What is vegetation.

400

What do two citric acid and water solutions made at the same temperature always have?

What is concentration

400

This is the life requirement of a duck.

What is exchange gases, reproduces, made of cell, and flies.

500

A cube of closed-cell foam was placed in a syringe with a clamped end.  When the plunger pushed in, this happened to the cell foam.

What is, it got smaller

500

Which of these is an example of an individual,

a rose bush or rocks?

What is a rose bush

500

This keeps organisms from reaching their reproductive potential.

what are limiting factors

500

What kind of reaction is a burning match?

What is a chemical reaction

500

This determines the size of a population.

What is how many individuals are born

What is how many individuals die

What is all of the above.