Science End of Year Review

What is an ecosystem?

• The study of how organisms interact with living and non-living factors around them

• The non-living and physical factors of an environment

• The living and dead factors of an environment

• Living and non-living factors interacting to form an environment

What makes up the Central Nervous System?(Select all that apply)

• Brain

• Spinal cord

• Peripheries

• Sensory neurons

Electricity is created...

• from electrons orbiting the nucleus

• from free-moving electrons

• from electrical potential energy

• from a wire

Static Electricity is....

• an imbalance of charge due to friction between two conductors

• charges flowing through a person, causing them to get shocked

• an imbalance of charge due to friction between two insulators

• charges flowing through the carpet, causing people to get shocked when they step on it

In this symbiotic relationship, one organism (the parasite) benefits and the other organism is infected and harmed (the host). This is:

• Parasitism

• Commensalism

• Predation

• Mutualism

In this symbiotic relationship, both organism benefit. This is:

• Predation

• Commensalism

• Mutualism

• Competition

The _______ of an elements equals the number of protons in an atom of that element

• Mass Number

• Atomic Number

• Atomic Weight

• Isotopes

Where are protons and neutrons found in an atom?

• In the atomic number

• Inside the nucleus

• Outside of the nucleus

• In the electron zone

When atoms bond with each other, they exchange

• Protons

• Neutrons

• Electrons

What is the symbol of Calcium

• Cr

• Ca

• Cu

• C