Energy Transformations and Heat Transfer
Chemical Bonding
Reactions
Phases of Matter
Scientific Investigation
100
What method of heat transfer travels in waves?
radiation
100
Which type of bonding involves a metal and a nonmetal?
ionic
100
What are the 2 main parts of a chemical reaction?
reactants and products
100
What phase of matter has the LEAST amount of kinetic energy?
solid
100
What are independent variables?
what the SCIENTIST changes
200
What form of energy do fossil fuels and food have?
chemical
200
Where do you look for NONMETALS on the periodic table?
the right side of the stairstep line
200
What word represents the arrow in a chemical reaction?
yields
200
What phase of matter has the LEAST amount of kinetic energy?
liquid
200
How do you identify constants?
identify things that were kept the same
300
What object does the following transformation?
light --> chemical
a plant
300
Why do atoms bond with each other?
to get to 8 valence electrons OR become more stable
300
Where are the reactants in a chemical equation?
to the left of the arrow/at the beginning
300
What theory states that all particles are perpetually in motion and have kinetic energy?
Kinetic Molecular Theory
300
What key words should be part of a good hypothesis?
IF and THEN
400
What method of heat transfer explains the top floor of a house being warmer than the bottom floor during the summer?
convection
400
What type of bonding occurs in the following formula?
CaF2
Ionic
400
What does the Law of Conservation of Matter say?
Matter cannot be created or destroyed.
400
What labels belong in section D of the graph?
condensation and evaporation
400
IF Kaley heats water using a microwave, kettle, and hot pot, THEN the hot pot will heat the water the fastest.
What is the dependent variable?
how fast the water heats
500
During any energy transformation, some energy is lost to the environment as what form?
thermal energy/heat
500
Which type of bonding is represented by the phrase "sharing is caring"?
covalent
500
When balancing chemical equations, what should one do first?
count the elements in the reactants and products
500
Explain the spacing, movement, and amount of energy in a gas.
Spacing - far apart
Movement - move quickly
Amount of energy - high
500
What is a control?
the trial with the "normal" version of the independent variable used for comparison