MATTER
WEATHER AND CLIAMATE
ENERGY AND ELECTRICITY
CHEMICAL/PHYSICAL CHANGES
MOTION AND FORCE
SCIENTIFIC PROCESS
100
what physical property of matter would you most likely sort skittles by?
color
100
What is sleet?
Partially melted snow or REALLY cold rain.
This happens when snow passes through a warm mass of air before it touches the ground.
100
If you were to open a circuit, what would happen to the lightbulb in the circuit?
It wouldn't turn on.
100
What are some examples of physical changes?
100
If you decided to roller skate on one of the following surfaces, which would have the most friction?
Polished wood floor (think of Astro Skate's rink)
OR
bumpy parking lot pavement
Bumpy parking lot pavement has more friction and reduce your motion the most.
100
What do we call an educated prediction?
A HYPOTHESIS
200
What is the difference between mass and volume?
Mass (weight) is the amount of matter an object contains, volume is the amount of space an object occupies (takes up)
200
What would cause precipitation to fall down as snow instead of rain?
In order for precipitation to fall down as snow, it would need to experience temperatures BELOW freezing (32* or less). Temperatures above freezing would result in standard rain.
200
Which of the following is an example of using energy to create change?
A. Using a marker to color a worksheet.
B. Using a toaster to make toast.
C. Adding sugar to make sweet tea.
D. Using a knife to cut a pizza.
B. Using a toaster to make toast.
This is because a toaster uses electrical energy and heat energy to make toast.
200
Which of the following speeds up the rate of a chemical or physical change, and can result in the change of state of matter from a solid to a liquid or gas?
Heat
200
What force is acting on us at ALL TIMES?
Gravity.
200
Scientists do which of the following things in order to prove the validity of their experiment?
A) try different experiments
B) They add more variables to the experiment
C) they do repeated trials (the same trial over and over)
D) They form a hypothesis
C) they do repeated trials (the same trial over and over)
300
True or false?
Gases do not have matter.
FALSE
Gas DOES have matter - IN FACT if you were to weigh a balloon inflated with air (gas) on one side of a scale, vs an empty balloon, the inflated balloon would display itself as the heavier object (as it has more mass)
300
Where might you find snow in tropical climates?
The tops of mountains that have a high enough elevation. 
300
Powering up a music stereo/speaker is an example of what type of energy change?
________ energy to ________ energy
Choose from the following:
Heat, light, electrical, sound, mechanical, or chemical
Electrical energy to sound energy
300
Which of the following changes is a CHEMICAL change caused by heat?
A. Chocolate melting.
B. Boiling water until is rises as water vapor.
C. water vapor condensing into rain drops.
D. Baking sugar cookies.
D. Baking sugar cookies.
This is because once the sugar, flour, and eggs undergo the baking process, they form a new substance that can't be reversed back into their original contents.
300
__________, which is defined by two surfaces rubbing against each other in opposite directions, increases/decreases (select one) an object's motion.
FRICTION DECREASES an object's motion.
300
What does it mean when a scientist comes to a conclusion with their experiment?
This is when a scientist makes a statement based on the results from their data after they're done experimenting.
400
What is the difference between solids vs. Liquids and gases?
Solids have a definite, fixed shape - meaning they don't take the shape of their container.
Liquids and gases take the shape of their containers.
400
If you were told that there would be high pressure in the air tomorrow, How should you dress?
High pressure systems mean that there will be sunny weather. Perhaps you should wear sunglasses and a hat!
400
When you rub a balloon with a piece of wool, why is it attracted to other objects like our shirt or hair?
Use the following terms such as positively charged particles (protons) and negatively charged particles (electrons) to explain!
When you rub a balloon with wool, it releases negatively charged particles on the balloon, which are attracted to the positively charged particles on other objects!
REMEMBER: opposites attract ( + positive +) ♥ ♥ ♥ ( - negative -)
400
What affect does heat and the motion of stirring have on solutes such as salt and sugar?
It causes solutes to dissolve faster.
400
More mass requires more ______ to put an object in motion, or stop its motion
FORCE
The more mass an object contains, the more force it will require to change its motion. More force means more movement!
400
Why do scientists make charts and graphs?
To categorize, record and collect data.
500
Which of the states of matter would you most likely use properties like hardness, size, and texture to describe?
Solids
500
Describe how the water cycle works, and the different states of matter the water goes through each step of the cycle.
Try to use the terms evaporation, condensation, precipitation, water vapor, gas, rain, and liquid.
liquid water from earth's water bodies (oceans and lakes) evaporates and form water vapor (gas) as it rises into the atmosphere.
Once it's in the atmosphere, the water vapor (gas) cools and undergoes condensation.
After it condenses, it turns back into a liquid eventually falls back down as precipitation, or rain (Liquid)
500
Organize the following items into two categories : Conductors and insulators
copper wire, rubber eraser, wooden pencil, steel nail, metal spring, plastic straw, cotton cloth, aluminum foil,
CONDUCTORS (allows the flow of electricity)
copper wire, steel nail, metal spring, aluminum foil
INSULATORS (STOPS the flow of electricity)
rubber eraser, wooden pencil, plastic straw, cotton cloth
500
What is evidence that a chemical change has occurred?
500
In order for an object at rest to be put into motion, there needs to be UN______ forces acting on it. This force is the result of unequal forces acting on an object - the object will give way to the greater force.
UNBALANCED forces
500
Give an example of an observation vs. an example of an opinion
Possible example
Observation - the rock has several cleavages in it, it also has a hardness level of 5.
Opinion - the luster on the rock creates a beautiful reflection.