Atoms, Molecules and Other Tiny Stuff
What does a seat belt do?
It keeps you from flying out of the car.
What is an atom?
The smallest unit of ordinary matter.
True or false: ice is the solid version of water.
True.
Which column on the periodic table is Alkaline Earth?
What is the second column?
What is the formula for speed?
What is the Δdistance/Δtime.
What is a solution?
Solution is a mixture composed of only one phase.
What are the four basic elements humans use for demonstration.
What is earth, fire, water, air.
How is the periodic table organized?
By the number of protons an element has, in increasing order from left to right.
What is the difference between speed and velocity?
Speed is the change in distance over the change in time, while velocity is speed with a defined direction.
Define evaporation.
Evaporation is the process by which water changes from a liquid to a gas or vapor.
True or False: Cake batter is a solution.
False; it is a mixture!
What is the formula for density?
Density=Mass/volume.
What is the number at the bottom of the element on the periodic table, and what does it do?
The atomic number, which reflects the amount of protons in the element's nucleus.
They reflect.
What is a cation?
A positively charged ion.
Is nuclear energy potential energy?
True, nuclear energy is potential energy.
What is the scientific method?
Ask a question, formulate a hypothesis, make a prediction!
What is the group on the far right side of the periodic table called?
The noble gases.
If you increase the length of a string does the pitch increase or decrease?
It decreases.
What is a chemical change?
A change that rearranges the chemical structure of substances through a chemical reaction.
What are diamonds made out of?
Carbon.