Energy Transformations
A hairdryer converts
What is electrical energy into thermal energy
What element is C
What is carbon?
more than one different element coming together in a set ratio
You read the level of liquid in a graduated cylinder by the
the meniscus
A change in matter that produces a new substance
chemical change
The direct transfer of heat from one object to another through touching
What is conduction?
How is the periodic table organized
Atomic number
How many elements are in CH4
2
the variable changed by the experimenter
what is the independent variable
When the movement of fluid causes something to get hotter such as a steaming cup of hot tea
What is convection
What energy conversion occurs when a skateboarder goes down a ramp?
What is gravitational potential to kinetic?
In an atom, where do the electrons exist?
In the electron cloud or on the rings
How many elements are in NaClO?
3
the part of the experiment that stays the same
What is the constant?
an electrical force of attraction between two atoms
what is a chemical bond
When you turn on my lamp what energy transformation occurs
Electrical to light and heat
What are protons and neutrons?
How many ATOMS are in (CH3COOH)
8
If I put cold milk in my hot chocolate then it will be colder. Is an example of what kind of statement
Hypothesis
What is one thing you CANNOT change when balancing chemical equations
the subscript
A gas stove has what energy transformation
chemical energy to radiant and thermal
What are the two ways to organize the periodic table (numbers for the rows and columns)
What are periods and groups?
Compounds are used in what to show a chemical change
chemical reaction
You are buying boxes of cookies at a bakery. Each box of cookies costs $4. What is the dependent variable?
The amount of money you spend
a substance that cannot be broken down into any other substances by chemical or physical means
what is an element