Show:
Cells
Atoms and Elements
Heat Energy
Waves
Electric charges and Magnetism
100
True or False: Cells are considered alive.
True
100
How many capital letters does each element have as a symbol?
One capital letter example H=Hydrogen
100
When water evaporates, it turn from ________ to _______.
Liquid to Gas
100
Looking in the mirror is reflection or refraction
reflection
100
Like charges (repel or attract)
repel
200
Plants are green because there is chloroplast in the cells. What is the purpose of the chloroplast in a plant cell?
Chloroplast make food from sunlight through photosynthesis.
200
Give one example of an element.
example: Hydrogen, Oxygen, Carbon
200
The three common states of matter are __________, ________, and ___________
solid, liquid, and gas
200
A straw looks bent when it enters water, because __________ (refraction or reflection)
refraction
200
If an atom has the same number of protons and electron, the atom is _________________
Neutral
300
Name one of the two organelles found in a plant cell and not in an animal cell.
Chloroplast or Cell Wall
300
What elements make up water H20?
Hydrogen and Oxygen
300
Ice melts to become liquid water mainly because a. water molecules move fast enough to break out of their fixed positions b. water molecules slow down so much that they melt c. water molecules react with oxygen to produce melting d. ice is less dense than water
a. The water molecules move fast enough to break out of their fixed positions
300
Sound needs matter to travel through, which makes it a (Mechanical wave or Electromagnetic wave).
Mechanical Wave
300
The closer magnets are together, the (stronger or weaker) the magnetic force.
stronger magnetic force
400
What is the progression from cells to multi cellular organism? Cell -> __________ -> ________ -> _________ -> Organism
Cell -> Tissue -> Organ -> Organ System -> Multi cellular
400
What two parts of the atoms are found in the nucleus?
protons and neutrons
400
When ice melts into liquid water, the water molecules (slow down or speed up)
the water molecules speed up
400
< > = Amount of energy of bright lights ________ Amount of energy in dim lights
>
400
How can you make an electromagnet pick up more paperclips?
Wrap the wire around the nail more times, move the nail closer to the paperclips
500
Which statement is NOT one of the cell theory statements? a. All cells come from other cells b. Cells are the basic unit of life c. Most cells have a cell membrane d. All organisms are made of one or more cells
C. Most cells have a cell membrane
500
NaHCO3 is baking soda. How many elements make up each molecule of baking soda?
Sodium, Hydrogen, Carbon, Oxygen
500
When water freezes, liquid water turns to solid ice mainly because a. water molecules get harder b. molecules move slowly enough that their attractions keep them in fixed positions c. all liquid water eventually becomes ice d. ice can float on water
The molecules move slowly enough that their attractions keep them in fixed positions
500
Draw a light ray that shows reflection off of a mirror.
Picture
500
Give one demonstration we used in class to show static charge.
Balloon pulling hair Pop can rolling toward the balloon