Vocabulary
The following would be considered a ________ observation: The elephant had a long grey trunk.
What is Qualitative Observation?
This data point was found by taking the sum of the numbers and dividing by the total number.
(2 + 3 + 7) / (3) = 4
What is average?
The number 0.03 has only one of these because the 0's before the non-zero number are not important.
What is significant digit?
What is chemical?
20 C is ____________ in Kelvin.
What is 293.15?
What is 300?
The following would be considered a __________ observation: January has an average temperature of 35 degrees Kelvin
What is Quantitative?
This data points shows how far off a measurement made in lab is from the commonly accepted value.
What is % Error?
5,000 can be re-written as ____________ in scientific notation.
What is 5 x 103?
This type of substance can exist either as a monatomic or diatomic version. They are small, simple, and stable.
What is an element?
This is the part (or parts) of an experiment that do not change in order to maintain continuity and limit the amount of variables in an experiment.
What is a constant?
The matter with a definite volume and indefinite shape
What is liquid?
The distance between two points is called ____ and is measured in this unit _______.
What is length and meter?
Students in a biochemistry lab at the local university are investigating the effects of ibuprofen on the gut. They decide to test the following hypothesis on a group of 1,000 mice: As the amount of ibuprofen increases, the amount of stomach acid produced by the mice will also increase. Given this hypothesis, the independent is _________________
What is the amount of ibuprofen?
The ___________ properties of something do not change no matter how much "matter" you have.
What is Intensive?
This is the measure of amount of solute within a solvent at a particular temperature.
What is solubility?
Blood is an example of the type of mixture that doesn't show a difference.
What is homogenous?
The amount of matter in an object is measured using the unit _____________.
What is kilogram?
This is the amount of grams in 0.06 tons?
What is 60,000 grams?
The coffee from starbucks has definite volume and indefinite shape. There is ice, coffee, and cold foam added on top. This coffee is considered a __________ mixture.
What is heterogenous?
Different liquids can be spilled on an incline plane. However, they won't reach the bottom of the page at the same time. This property describes why this happens.
What is viscosity?
How close a measurement is to a target value
What is accuracy?
The amount of substance is measured in this ________ unit. It has the same name as a common mammal.
What is a mole?
When one quantity is related to another unit with a quantity of one. (For example, there are 12 donuts in 1 dozen).
What is a ratio?
If you started with 20grams of carbon and 40grams of oxygen, ____________ should be the amount of carbon dioxide. This is due to the law of ____________________.
What is 60 grams?
What is the Law of Conservation of Matter?
This is a sign that a chemical change has occurred.
What is .... (multiple answers)
- Color change
- Energy change
- Odor change
- Release of light
- Sudden appearance of a solid
- Sudden appearance of a gas / gas bubbles.