Matter & Energy
What is the building block of matter?
Atom
What is a Contact Force?
a push or pull on an object by another object that is touching
What causes day and night?
The Earth rotating on its axis
This term describes a physical characteristic or trait within a population that differs from one individual to another, such as fur color or speed
Variation
The practice of saving, protecting, and using resources wisely to avoid waste.
Conservation
A new solid that forms when two clear liquids are mixed together.
Precipitate
In a flashlight, chemical energy in the battery becomes light energy through this intermediate form.
Electrical energy
A fish living in a lake demonstrates interaction between these two spheres.
Biosphere and hydrosphere
A relationship in which one organisms benefits while the other is harmed is called _______
Parasitism
What type of mixture that is uniform throughout, where you cannot distinguish the individual components
*also known as a solution*
Homogeneous mixture (solution)
Most elements on the periodic are classified as this type.
Metals
This is the resulting force when a box is pushed to the right with 155 N of force and friction acts to the left with 107 N.
48N to the right
What is the process to form an Igneous Rock?
Melting and Cooling
What are the levels of organization in the order of least complexity to highest complixity.
Explain how a dog is classified across all three characteristics.
Multicellular
Eukaryotic
Heterotroph
An element that is shiny but brittle, conducts electricity but not very well.
Metalloid
This force opposes motion between two surfaces touching each other.
Friction
This layer of Earth is made mostly of molten rock
The mantle
When two species compete for the same limited resource, both populations are most likely to do this.
Decrease
The reason Earth experiences seasons
The tilt of Earth's axis
During a chemical change, what happens to the atoms/molecules in the substances?
Atoms rearrange themselves to form new compounds
This type of potential energy is based on an object's height above the ground
Gravitational Potential Energy
During what time does the Earth experience equal amounts of daylight and nighttime? and What seasons are experienced during this time?
During the Equinox (Spring and Fall seasons)
If a new species of animal is introduced that eats all the local plants, this happens to the native animal population that depends on those plants.
They decline/decrease (due to loss of food)
A scientist observes two species of birds competing for the same nesting sites. Over time, one species begins nesting higher in trees. This change most directly reduces this.
Competition