Scientific Thinking & Matter
This type of observation uses numbers or measurements.
What is a quantitative observation?
This subatomic particle has a negative charge.
What is an electron?
Speed is the ratio of distance to this.
What is time?
Sound waves are best classified as this type of wave.
What are longitudinal waves?
A material that easily carries electric current is called this.
What is a conductor?
This type of observation uses the five senses.
What is a qualitative observation?
This number is unique for each element.
What is the number of protons?
The slope of a distance-time graph shows this.
What is speed?
Pitch is mostly determined by this property of a sound wave.
What is frequency?
A circuit that does not have a complete path is called this.
What is an open circuit?
This is a tentative explanation for an observation.
What is a hypothesis?
Atoms of the same element with different numbers of neutrons are called this.
What are isotopes?
The energy of motion is called this.
What is kinetic energy?
Electromagnetic waves are able to travel through this.
What is empty space?
Rock formed when sediments are cemented and hardened is this type of rock.
What is sedimentary rock?
A substance made of only one kind of atom is called this.
What is an element?
A chemical bond formed between oppositely charged ions is this type of bond.
What is an ionic bond?
Newton’s first law is sometimes called the law of this.
What is inertia?
These electromagnetic waves have the longest wavelengths.
What are radio waves?
Rock formed from cooling magma or lava is this type of rock.
What is igneous rock?
Sugar is made of carbon, hydrogen, and oxygen chemically joined in a fixed proportion, so sugar is this type of substance.
What is a compound?
A chemical bond where atoms share valence electrons is this type of bond.
What is a covalent bond?
This equation says that energy of motion depends on mass and the square of velocity
What is kinetic energy?
Light that vibrates in only one direction is called this.
What is polarized light?
The continuous movement of water through evaporation, condensation, and precipitation is called this.
What is the water cycle?