Science Atoms, Molecules

Front 1

atoms are

Back 1

the building blocks of all matter

Front 2

atoms are mostly

Back 2

empty space

Front 3

in the center of an atom is

Back 3

the nucleus

Front 4

the nucleus contains

Back 4

protons and neutrons

Front 5

what revolves around the nucleus

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electrons

Front 6

all matter is made up of atoms and...

Back 6

molecules

Front 7

atoms combine to form

Back 7

molecules

Front 8

there are ______ natural occurring elements on the periodic table

Back 8

92

Front 9

chemical formula for salt

Back 9

NacL

Front 10

chemical formula for water

Back 10

h2o

Front 11

everything in the universe is matter or _________

Back 11

energy

Front 12

_______ is in every living thing

Back 12

carbon

Front 13

what is an atom

Back 13

smallest particle of a type of matter that has the same characteristics as that type of matter

Front 14

solids, liquids, gases and plasmas are all ______

Back 14

atoms

Front 15

atoms of the same element are the ____

Back 15

same

Front 16

atoms of different elements are ______

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different

Front 17

atoms are not created or destroyed by

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chemical change

Front 18

atoms are _______

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divisible

Front 19

the atom was first thought of by a man named________ 2000 years ago

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democritus

Front 20

what is an element

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simple substance that cannot be broken down into simpler substances

Front 21

what is a symbol

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short way of writing the name of an element

Front 22

there are _______ known different kinds of atoms

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118

Front 23

most matter is made up of _______ or more kinds of atoms

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two

Front 24

some matter is made up of only _____ kind of atom

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one

Front 25

___ elements were made by scientist in laboratories

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26

Front 26

_____ and ________ are liquids found at room temperature

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mercury and bromine

Front 27

symbols always start with _______ _____

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capital letter

Front 28

periodic table is the ________ all over the world

Back 28

same

Front 29

why is it possible to study one atom

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due to the new technology

Front 30

what is a conductor

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substance through which heat and electricity travel well

Front 31

what is a group

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a column, or family, in the periodic table

Front 32

what are metals

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elements found on the left side of the periodic table, which share properties

Front 33

what are nonmetals

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elements found on the right side of the periodic table

Front 34

what is a period

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a row across the periodic table

Front 35

what is periodic

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a chart of all known elements

Front 36

how is the periodic table arranged

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the lightest element has the lowest atomic number; highest has thew highest atomic number

Front 37

protons are _________ charges

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positive

Front 38

neutrons are ________ charges

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they don't have a charge

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electrons are __________ charges

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negative

Front 40

protons and electrons _________ _____ ________ out

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cancel each other out

Front 41

orbit

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the shell outside the atom

Front 42

all liquids

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flow

Front 43

gases have

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mass

Front 44

a gas is always

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moving

Front 45

liquids take the shape of their container t or f

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true

Front 46

all liquids take up

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space

Front 47

all solids take up

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space

Front 48

a piece of dust is an example of solids t or f

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true

Front 49

a solid shapes itself in a container t or f

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false

Front 50

what is a biologist?

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studies all forms of life

Front 51

what is a paleontologist

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studies dinosaurs and fossils

Front 52

what is a seismologist

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studies earthquakes

Front 53

what is an ichthyologist

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studies fish

Front 54

what is a mammalogist

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studies mammals

Front 55

what is a mineralogist

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studies minerals

Front 56

what is a geophysicist

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studies processes that change and shape the Earth

Front 57

what is a marine biologist

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studies the life forms found in the ocean

Front 58

who studies volcanoes

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volcanologist

Front 59

who studies the water cycle and water

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hydrologist

Front 60

what are the four states of matter

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solids liquids gases and plasmas

Front 61

all matter has mass and takes up _____

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space

Front 62

a solid takes up a _______ amount of space

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definite

Front 63

solids come in different colors, hardnesses and ______

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masses

Front 64

every solid has an oder t or f

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false

Front 65

a small amount of solid takes up a large amount of container t or f

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false

Front 66

the most common liquid on earth is ...

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water

Front 67

definite means

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exact

Front 68

all gases are invisible t or f

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false

Front 69

a gas has a definite amount of space t or f

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flase

Front 70

animals need oxygen t or f

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true

Front 71

plants need oxygen t or f

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true

Front 72

oxygen and nitrogen are ________

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gas

Front 73

gases will spread out to fill a container t or f

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true

Front 74

the difference between solid steel and liquid steel is _____

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energy

Front 75

all phases are what scientist call ______

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matter

Front 76

if there were no molecular motion matter would be at

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absolute zero

Front 77

absolute zero is more an idea because _______ will always find its way to matter

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heat

Front 78

gases can be

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poured

Front 79

gases have ____ and mass

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volume

Front 80

molecules in matter are always ______

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moving

Front 81

in a solid the molecules move ______ because they are packed close together

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slowly

Front 82

in a liquid the molecules move faster because they can _____

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flow

Front 83

in a gas molecules move very

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fast

Front 84

when molecules slow down they get ______ together

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closer