Chemistry Flashcards

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1
Q

What can we use elements for

A
A.building bridges
B. Making clothes
C.curing disease
D.Powering cars
C.all of the above
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2
Q
Every substance in the universe is made up of building blocks known as: 
A.Lego
B. Elements
C.Atoms
D. Scientific
A

Atoms

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3
Q

Is an element a substance?

A

Yes

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4
Q

Name four properties of metallic elements

A

Mercury, Iron, copper and Gold

Remember MICG

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5
Q

Air is made up of two gases , name them?

A

Oxygen and Nitrogen

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6
Q

Name four non metallic elements

A

Carbon,iodine,chlorine and sulfur

Remember CICS

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7
Q

Name the table scientists display elements and symbols

A

Periodic table

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8
Q

What is a periodic table used for?

A

To display elements and their symbols

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9
Q

Who uses a Periodic table?

A

Scientists

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10
Q

What’s the difference between an element and a compound?

A

An element is made up of one type of atom and a compound is made up of two or more atoms.

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11
Q

Elements are the basic materials for building the world around you.
Name 3 elements

A

Chairs, skin, windows, stars, sun,desks, ocean

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12
Q

Name two ways the world changes?

A

Physical changes and chemical change

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13
Q

Name types of physical changes?

A

Eg ice melting, crushing a can, mixing

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14
Q

What is a key feature of physical change?

A

During physical change no new substances are formed

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15
Q

Name some types of changes of state

A

Expansion, contraction, melting, evaporation, condensation, freezing, dissolving

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16
Q

How can we identify chemical change?

A

A new substance is formed.

What are the signs of this happening :seeing a change in colour, smelling gas or seeing bubbles, seeing a new solid forming, seeing light or feeling a change in temperature

17
Q

Name some examples of everyday chemical change?

A

Rusting,photosynthesis, fire