Unit 1 Test

Question 1

Science

Answer 1

Accumulating knowledge about the world around us

Question 2

Chemistry

Answer 2

The study of properties and interactions of atoms and molecules

Question 3

Scientific method

Answer 3

Used as a logical thought process to help ensure valid research that leads to a conclusion; Used to support or disclaim a hypothesis; Validify is assured by using only one variable at a time and a control for comparison.

Question 4

Technology

Answer 4

Also called applied research uses scientific information to improve people’s lives

Question 5

Theory

Answer 5

1. A work in process still being finely tuned
2. An explanation or interpretation of experimental results
3. Not a fact - has not been proven

Question 6

Law

Answer 6

1. Facts in science which are always true
2. Often a mathematical expression
3. Deals with some consistent behavior in the natural world

Question 7

Observation

Answer 7

uses one or more of the 5 senses to describe what is present

Question 8

Qualitative observation

Answer 8

Describes without numbers

Question 9

Quantiative observation

Answer 9

Describes with numbers.

Question 10

Interpretation

Answer 10

Explains the observation by answering “why?”

Question 11

What do meters measure?

Answer 11

Length

Question 12

What do grams measure?

Answer 12

Mass

Question 13

What do liters measure?

Answer 13

Volume

Question 14

What does Kelvin measure?

Answer 14

Temperature

Question 15

What does Celcius measure?

Answer 15

Temperature

Question 16

Precise

Answer 16

Reproducibility in replicate measurements

Question 17

Accurate

Answer 17

Measurements are close to the “true” value

Question 18

Meniscus

Answer 18

This is the curved surface of a liquid in a narrow cylindrical container.

Question 19

Parallax Error

Answer 19

Arise when a meniscus or needle is viewed from an angle rather than from straight on at eye level.