the use of reflected sound waves to determine distances and locate objects (commonly used by dolphins and bats)
What is echolocation
100
The color of an opaque material is the color of the light it
What is reflects
100
The basic/smallest particle from which all elements are made
What is a atom
200
An object in motion will stay in motion, and an object at rest will stay at rest, unless acted upon by an unbalanced force
What is Newton's first law of motion
200
The upward force exerted on an object in water
What is buoyancy OR buoyant force
200
A disturbance that travels through a medium as a longitudinal wave
What is sound
200
A material that attracts iron and materials that contain iron
What is a magnet
200
An interpretation based on observations and prior knowledge. Example: saying "it must be raining outside" after watching someone come in the classroom with a wet umbrella.
What is an inference
300
The measure of the amount of matter in an object
What is mass
300
The change from a gas to a liquid
What is condensation
300
A complete range of electromagnetic waves that are placed in order of increasing frequency
What is the electromagnetic spectrum
300
The attraction or repulsion of electric charges
What is electricity OR electric force
300
A possible explanation for a set of observations. You make one before conducting an experiment.
What is a hypothesis
400
The amount of matter in an object
What is mass
400
An object that floats at the top of water is _________ dense than the water. An object that floats in the middle of the water is _________ dense than the water. An object that sinks to the bottom of the water is ________ dense than the water.
What is less, equal, more
400
A transverse wave that transfers electric and magnetic energy
What is an electromagnetic wave
400
When light strikes an object it can be _________________, _________________, and _________________,
What is transparent, translucent, opaque
400
A chart of elements showing the repeating pattern of their properties
What is the periodic table
500
a _____________ can cause an object's motion to change
What is unbalanced force
500
The form of energy stored in bonds between atoms
What is chemical energy
500
A wave with a large amplitude has a lot of
What is energy
500
The attraction or repulsion of electric charges is
What is electric force
500
A mixture in which substances are evenly distributed throughout the mixture