Lessons 1-3

Question 0

Observing

Answer 0

Using one or more sense to gather information

Question 1

Science

Answer 1

The study of the natural world

Question 2

Inferring

Answer 2

Explaining your observations

Question 3

Predicting

Answer 3

Making a forecast of what will happen in the future based on past experiences

Question 4

Chemistry

Answer 4

The study of the properties of matter and how matter changes

Question 5

Physics

Answer 5

The study of matter, energy, motion, and forces, and how they interact

Question 6

Scientific inquiry

Answer 6

The different ways scientists study the natural world

Question 7

Hypothesis

Answer 7

A possible answer to a scientific question or explanation for a set of observations

Question 8

Parameter

Answer 8

A factor that can be measured in an experiment

Question 9

Manipulated variable

Answer 9

The variable that is purposely changed

Question 10

Responding variable

Answer 10

The variable that is expected to change

Question 11

Controlled experiment

Answer 11

An experiment that only one parameter is changed

Question 12

Data

Answer 12

Facts, figures, and other evidence

Question 13

Communicating

Answer 13

Sharing information and conclusions with others

Question 14

Model

Answer 14

A picture, diagram, computer image, or other presentation

Question 15

Scientific theory

Answer 15

A well tested explanation for a wide range of observations

Question 16

Scientific law

Answer 16

A statement that describes what scientist expect to happen every time

Question 17

Si

Answer 17

The expanded notation system

Question 18

Weight

Answer 18

A measure of the force of gravity on you

Question 19

Mass

Answer 19

A measure of the amount of matter an object contains

Question 20

Volume

Answer 20

The amount of space an object takes up

Question 21

Meniscus

Answer 21

The curve of a graduated cylinder

Question 22

Density

Answer 22

Mass per unit of volume

Question 23

Celsius scale

Answer 23

The temperature at which water freezes at 0 degrees and boils at 100 degrees

Question 24

Kelvin scale

Answer 24

Same as Celsius

Question 25

Absolute zero

Answer 25

Nothing gets colder -273 degrees Celsius

Question 26

Accuracy

Answer 26

How close a measurement is to the the true or actual value

Question 27

Reproducibility

Answer 27

How close a group of measurements are

Question 28

Significant figures

Answer 28

A measurement that includes all of the digits

Question 29

Precision

Answer 29

A measure of the exactness of a measurement

Question 30

Graph

Answer 30

A picture of your data

Question 31

Horizontal axis (x axis)

Answer 31

The graph line that turns left to right

Question 32

Vertical axis (y axis)

Answer 32

The graph line that runs up and down

Question 33

Origin

Answer 33

The place where it begins

Question 34

Coordinate

Answer 34

A pair of numbers that is used to determine the position of a point on a graph

Question 35

Data point

Answer 35

The point showing the intersection on the graph

Question 36

Line of best fit

Answer 36

A smooth line that reflects the general pattern of a graph

Question 37

Linear graph

Answer 37

All data points are a strait line

Question 38

Slope

Answer 38

The steepness of the graph line

Question 39

Nonlinear graph

Answer 39

The lines do not follow a strait line

Question 40

Matter

Answer 40

Anything that has mass and takes up space

Question 41

Substance

Answer 41

A single kind of matter that is pure

Question 42

Physical property

Answer 42

A characteristic of a pure substance that can be observed without changing it into another substance

Question 43

Chemical change

Answer 43

A characteristic of a pure substance that describes its ability to change into different substances

Question 44

Chemical bond

Answer 44

A force of attraction between two atoms

Question 45

Molecules

Answer 45

Groups of two or more atoms held together by chemical bonds

Question 46

Chemical formula

Answer 46

Shows the elements in the compound and the ratio of atoms

Question 47

Compound

Answer 47

A pure substance made of two or more elements chemically compounded in a set ratio

Question 48

Mixture

Answer 48

Made of two or more substances

Question 49

Heterogenous mixture

Answer 49

Different parts of things such as damp soil

Question 50

Homogenous mixture

Answer 50

Something that is so evenly mixed that you can’t see the differences

Question 51

Solution

Answer 51

A example of a homogenous mixture

Question 52

Physical change

Answer 52

Any change that alters from the appearance of matter but doesn’t change

Question 53

Chemical change

Answer 53

Is a change in matter that produces one or more new substances

Question 54

Temperature a measure of the average energy of random motion of particles

Answer 54

A measure of the average energy of random motion of particles

Question 55

Thermal energy

Answer 55

The total energy of all of the particles in an object

Question 56

Endothermic change

Answer 56

A change at which energy is taken in

Question 57

Exothermic change

Answer 57

Releases the energy

Question 58

Chemical energy

Answer 58

Is stored in the food that you eat

Question 59

Electromagnetic energy

Answer 59

Energy that travels through space as a wave

Question 60

Electrical energy

Answer 60

Electrically charged particles moving from one place to another

Question 61

Electrodes

Answer 61

Are two metal strips placed in the solution