Science
What is physical change?
usually reversible change in the physical properties of a substance, as size or shape
whats the different's between static and current electric?
Static electric is made from positive and negative charges rubbing together and current electric is when electric runs through something like a computer
What did the Wright Brothers invent?
the plane
What is Yellow Journalism?
when the US newspaper exaggerated the mistreatment of Cubans and Americans by Spanish soldiers.
Ice melting is an example of what kind of change?
Physical change.
What is the best way to separate the following from a bowl of water:
iron filings, rocks, and sand from a bowl.
iron filings: use a magnet
rocks: tweezers/pick them out
sand: use a coffee filter
Why was Alexander Graham Bell's invention important?
it helped people communicate long distances.
What was the catchphrase used to encourage the war with Spain?
"Remember the Maine!"
Chemical or Physical Change:
Yeast in bread
chemical change
True or false
When you touch an ice cube, heat leaves your body causing you to feel cold.
True
Who invented the light bulb?
Thomas Edison
Who sought permission from Congress to send troops to Cuba to fight Spain?
President William McKinley
Who was president when the Panama Canal was finished?
Theodore Roosevelt
What happens when an ice cube melts?
the ice cube gains heat causing it to melt.
Where was the first flight taken?
Kitty Hawk, North Carolina
Name the countries that the US gained control over once they won the Spanish American War.
Philippines, Guam, (“South Pacific”) and Puerto Rico
How do you know a chemical change has occurred?
there is a: color change, odor, temperature change, and it has turned into something new.
Explain how molecules move in the different states of matter.
gas: molecules are moving fast
liquid: molecules move freely
solid: molecules do not move much
What did George Washington Carver invent?
Hint: not peanuts
crop rotation
What were the two reasons that caused the Spanish American War?
Yellow Journalism and the explosion of the USS Maine
What did the Panama Canal do?
Made it so it would take less time to get to the west from Europe