You define me!
The smallest chemical unit of matter
What is a variable?
213 cm = ____ m
2.13 m
1/100, 1/1000, 1000 are the numerical meanings for these prefixes.
What are "centi", "milli", and "kilo"?
In experiment 1.3, this caused the antacid tablet to dissolve more quickly
What is a higher concentration of vinegar? (more vinegar is acceptable)
Have scientists ever seen an atom?
No
Two or more atoms linked together to make a substance with unique properties
What are molecules?
.946 kg = ____ g
946 g
The metric and English standard units for length
What are the meter and the foot?
This ancient measurement is unreliable because it can vary from measurement to measurement and from person to person.
What is the cubit?
How many grams are in a megagram?
1,000,000, one million
The quanity of a substance within a certain volume of space
What is concentration
15,347 mL = ____ L
15.347 L
The metric and English standard units for volume
What are the liter and the gallon?
A bucket of mopping solution is left outside in the hot sun, and some of the water in it evaporates. Is the soapy solution more or less concentrated?
More concentrated.
Name another ancient unit of measurement that is about an inch long.
The finger
Study of the structure of the earth and its place in the solar system and the universe
What is Physical science?
42.7 cm = _____ in
16.8 in
The metric and English standard units for mass
What are the gram and the slug
58.44g of sodium chloride can be broken down into 22.99g of sodium and 35.45g chlorine. Is sodium chloride an atom or molecule?
It is a molecule.
What caused the bubbles in the first experiment?
The electricity from the battery split the water molecules into oygen and hydrogen atoms.
A substance composed of only one type of molecule
What is a compound?
0.365 slugs = _____ kg
5.33 kg
The metric equivalent to 1 gallon (1 gallon = ____ )
What is 3.78 L?
Why is water a liquid but oxygen and hydrogen are gasses?
Compounds have their own unique properties different from the atoms that form them.
Why is the Statue of Liberty green?
The copper reacts with the oxygen in the air.