States of Matter
What are the three major states of matter?
Solid, Liquid, Gas
What has more thermal energy and why?
A cup of steaming hot chocolate or the Great Dismal Swamp?
The Great Dismal Swamp because it contains more matter.
Which form of energy transfer uses direct contact?
What is the universal solvent?
Water
What is the formula for calculating density?
Mass divided by volume or D = M/V
Which state of matter has the least amount of kinetic energy?
Solid
Which direction does heat flow?
From hot to cold
What form of heat transfer is shown in the example of a hot air balloon?
Convection
What is the simplest form of matter?
Element (atom)
What happens when you mix a high density liquid with a low density liquid?
They separate with the higher density liquid sinking to the bottom.
Anything that has mass and takes up space is known as what?
Matter
What happens to the molecules speed as they gain energy?
The get faster.
What is thermal conductivity? (think ice cube demonstration)
Measures how quickly heat flows through a material.
What are the two forms of mixtures and give me an example of each?
Homogenous, Heterogenous
20mL = how many cm3?
20 cm3
Phase change from solid directly to gas is called what?
Sublimation (Dry Ice)
At what temperature do all molecules stop moving?
Absolute 0 or 0 Kelvin
What are the three forms of heat transfer and an example of each?
Conduction, Convection, Radiation
What makes a compound differ from a mixture?
It is chemically bonded.
What is the density of a perfect cube that weighs 192 grams and has a side measuring 4 cm.
3 g/cm3
What is plasma?
Gas state of matter with an electric charge (ionized).
What is the freezing point of water in the USA?
What is the freezing point of water in England?
What is the freezing point of water in a science lab?
32 Degrees Fahrenheit
0 Degrees Celsius
237 Kelvin
Which has a greater heat capacity, water or land? What does this mean?
Water - this allows water to store greater amount of heat energy and reduces the range of temperature.
What are 2 ways you can separate a mixture?
evaporation, filtration, physically picking apart, magnets, etc.
A rock raises the graduate cylinder's volume from 25mL to 36mL and has a mass of 220 grams. What is the density of the rock?
20 g/mL