Mdterm Flashcards

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1
Q

Substances changed into new and different substances

A

Chemical change

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2
Q

A chemical combination of substances

A

Compound

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3
Q

Take shape and volume of container

A

Gas

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4
Q

Center part of an atom

A

nucleus

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5
Q

The mass per unit volume of a substance

A

Density

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6
Q

Characteristics of a substance

A

property

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7
Q

Change in appearance of a substance

A

Physical change

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8
Q

Simplest form of a substance

A

Element

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9
Q

Take shape of container but maintains volume

A

Liquid

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10
Q

Subatomic particle and Nucleaus with no charge

A

Neutron

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11
Q

Definite Shape and volume

A

Solid

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12
Q

Sub atomic particle in nucleus with a positive charge

A

Proton

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13
Q

What does S I stand for

A

Inter-national system of units

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14
Q

What are two benefits of using S I measurements

A

Helps scientists share and compare data

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15
Q

What is the basic unit of length in S I

A

Meter

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16
Q

What determines the prefix use when measuring objects and S I system

A

The size of the object

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17
Q

How much larger is a KM than a m

A

1000 times larger

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18
Q

What does temperature describe at what temperature in Celsius does water freeze and boil

A

How hot or cold it is and 0°C and hundreds degrees Celsius

19
Q

What prefix would be used when measuring the length of a pencil,science lab,and if distance from Allentown to Washington

A

Centimeter, meter,kilometer,

20
Q

Volume describes what what unit is used to measure the volume of liquid

A

The amount of space something takes up, a liter

21
Q

Grams is The unit of measure used from mass how many grams do you estimated the following objects weigh a paperclip and a science book

A

3 g, 20 g, 3,000

22
Q

A physical combination of substances

A

Mixture

23
Q

Parts of experiment that remainsfixed

A

Constants

24
Q

Unit for mass

A

Grams

25
Q

Factor being tested

A

Variable

26
Q

Eye dropper

A

Pipet

27
Q

Graph used to compare

A

Bar

28
Q

Measures to the nearest ml

A

Graduated cylinder

29
Q

Graph used to show change over time

A

Line

30
Q

Lowest point of liquid

A

Meniscus

31
Q

Heating and holding small amounts of liquid

A

Test tubes

32
Q

Units for distance

A

Meter

33
Q

Educated guess as to outcome of science project

A

Hypothesis

34
Q

Used to separate solids from liquid

A

Funnels

35
Q

Attached to ring stand for support

A

Ring clamp

36
Q

Experiment without variable

A

Control

37
Q

Observation made by senses

A

qualitative

38
Q

Used for grinding

A

Mortart and pestle

39
Q

Unit for volume

A

Liter

40
Q

General liquid measures

A

Beaker

41
Q

Equipment used for measuring mass

A

Balance

42
Q

Volume unit for regular solid

A

Cubic centimeters

43
Q

Unit for temp

A

Celsius