Science

Question 0

Manipulated variable or Independent variable

Answer 0

the variable that is purposely changed to test a hypothesis

Question 1

Variables

Answer 1

Factors that can change in an experiment

Question 2

Responding variable or dependent variable

Answer 2

The factor that changes in response to the manipulated variable.

Question 3

Communicating

Answer 3

Sharing of ideas and experimental findings with others through writing and speaking.

Question 4

Scientific theory

Answer 4

A well tested explanation of wide range of observations or experiments results.

Question 5

Scientific law

Answer 5

It statement that describes what scientists expect to happen every time under a particular set of conditions

Question 6

Scientific inquiry

Answer 6

The diverse ways in which scientists study the natural world and propose explanations based on the evidence they gather

Question 7

Hypothesis

Answer 7

A possible explanation for a set of observations or answer to a scientific question. It must be testable…

Question 8

Operational definition

Answer 8

A statement that describes how to measure a particular variable or define a particular term

Question 9

Scientific theory

Answer 9

A well tested explanation for a wide range of observations or experimental Results

Question 10

The metric system

Answer 10

System of measurement based on the number 10

Question 11

International system of units

Answer 11

A version of the metric system used by modern scientists.
It’s used to measure length volume mass density temperature and time.
Using SI units as the standard system of measurement allows scientists to compare data and communicate with each other about their results.

Question 12

Length

Answer 12

The distance from one point to another.

The basic unit of length is the meter

Question 13

Mass

Answer 13

A measure of the amount of matter in object contains

The basic unit of mass is the kilogram

Question 14

Weight

Answer 14

A measure of the force of gravity acting on an object.

Question 15

Volume

Answer 15

The amount of space and object takes up

= Length x width x height

Question 16

Density

Answer 16

A measure of how much mass is contained in a given volume

= mass/volume

because density is actually made up of two men other measurements mass and volume an objects density is expressed as a combination of two units
G/cm3 and g/mL

Question 17

Mean

Answer 17

Numerical average

calculated by adding all the numbers up and dividing by the total number of items in the list

Question 18

Median

Answer 18

The middle number and a set of data

Question 19

Mode

Answer 19

The number that appears most often in a list of numbers

Question 20

Controlled experiment

Answer 20

An experiment in which only one variable is manipulated at a time

Question 21

Earth move through space in two major ways what are they

Answer 21

Rotation and revolution

Question 22

Axis

Answer 22

Imaginary line that passes through earths center and the north and south poles

Question 23

Rotation

Answer 23

The spinning of earth on its axis

Question 24

Revolution

Answer 24

The movement of one object around another

Question 25

Calendar

Answer 25

A system of organizing time that defines the beginning length and divisions of the year

Question 26

Why does the earth have seasons

Answer 26

Because it’s axis is tilted as it revolves around the sun

Question 27

June solstice

Answer 27

The north end of earths axis is tilted towards the sun it is summer in the northern hemisphere and winter in the southern hemisphere

Question 28

March and September equinoxes

Answer 28

Neither end of earths axis is tilted toward the sun both hemispheres receive the same amount of energy

Question 29

December solstice

Answer 29

The south end of earths axis is tilted towards the sun it is summer in the southern hemisphere and winter in the northern hemisphere

Question 30

Solstice

Answer 30

When the sun is furthest north or south of the equator

Question 31

Equinox

Answer 31

This occurs twice a year when the noon sun is directly overhead at the equator

It means equal night

Day and night are each about 12 hours long everywhere on earth

Question 32

The vernal equinox

Answer 32

Happens in the spring around March 21

Marks the beginning of spring in the northern hemisphere

Question 33

autumnal equinox

Answer 33

Occurs around September 22 and marks the beginning of fall in the northern hemisphere

Question 34

Force

Answer 34

A push or pull

Question 35

Gravity

Answer 35

The force that attracts all objects toward each other

Question 36

Newtons law of universal gravitation

Answer 36

States that every object in the universe attracts every other object

Question 37

The strength of force of gravity between two objects depends on two factors

Answer 37

The masses of the objects and the distance between them

Question 38

Inertia

Answer 38

The tendency of an object to resist a change in motion

Question 39

Newtons first law of motion

Answer 39

And object at rest will stay at rest and an object in motion will stay in motion with the constant speed and direction unless acted on by a force

Question 40

Inertia and gravity

Answer 40

Combine to keep earth in orbit around the sun and the moon in orbit around the earth