Very Vocab
Solute
What substance interacts with eggs to form a rubbery shell?
Vinegar
Name 4 materials you used in lab to demonstrate the physical properties of electric conductivity, thermal conductivity, reflectivity, and magnetism.
Circuit, heat lamp, laser/flashlight, and a magnet
Can matter be created or destroyed?
No!
Gravity
Vinegar, milk, and juice are examples of what part of a solution
Solvent
Why does a balloon inflate if you cover a bottle of vinegar and baking soda?
The carbon dioxide gas bubbles which are formed from the chemical reaction release into the air and get trapped inside the balloon.
In one lab, you combined different liquids into a graduate cylinder and watched them separate. What is this called?
Density
If you combine a base and an acid, what time of reaction will take place? Think about the baking soda (base) and vinegar (acid).
A chemical reaction will take place.
How could two objects, a bowling ball and a feather, be dropped at the same time and land at the same time?
If you drop the objects in a vacuum (no air resistance), they will land at the same time.
What is a solution?
A liquid mixture in which one substance is dissolved into another substance
How can you take a solute out of a substance after it has been mixed into a solvent?
The only way is to evaporate the solvent
If you melt butter or shortening in a burner, describe how the mass/weight of the substance changes?
Trick question - it DOESN'T change. Because matter is neither created nor destroyed, the substance will still remain the same even after it is melted.
Why do stars appear brighter in our night sky?
The appear brighter because they are closer to Earth. This is called apparent brightness.
What causes season changes?
Earth's tilted axis
Fruit salad and trail mix are examples of what?
Mixture
Why does an old penny look dirty?
Over time, the penny is exposed to oxygen which interacts with the copper to oxidate and form copper oxide.
How do you tell if an egg is raw or hardboiled without cracking it?
You spin the egg! If it spins fast and evenly, it is fully cooked. If it is slow or wobbly, the yoke is still moving around inside the egg when you spin it.
When do star constellations change in the night sky?
They change every season (or every 3 months).
What is a type of mixture called in which you could take a random sample and have the sample contain evenly distributed particles?
Homogenous mixture
A combination of substance that do NOT chemically combine is called a....
mixture
What tool can be used to help determine the mass of an object?
Scale or triple beam balance
What is matter?
Anything that has mass and takes up space
We can use the experiment of blowing up a balloon or basketball to demonstrate (show) which state of matter?
Gas
What was the name of the man who performed the highest jump from space?
Felix Baumgartner