Year 7 - Elemental System Flashcards
1
Q
What does oxygen do?
A
- we can’t survive without it
- w breathe it
- it is taken into our bodies using our lungs
- trees produce it
2
Q
What does hydrogen do?
A
- it is explosive
- it used to used to fill airships, but it was too dangerous
3
Q
What does copper do?
A
- it is a metal with an orangey colour
- it is a very good conductor
4
Q
What does helium do?
A
- it is sometimes used to fill balloons
- it is less dense than air, so balloons will float upwards
5
Q
What does chlorine do?
A
- it is poisonous
- it is used in swimming pools to kill bacteria
6
Q
What does sodium do?
A
- it is a very reactive metal
- it is part of salt
7
Q
What does sulphur do?
A
- it is a yellow solid at room temperature
- it is found in volcanoes, geysers and hot springs
- when it reacts with oxygen, it smells like egg
8
Q
What does magnesium do?
A
- it is a metal
- when it is heated, it burns with a white flame
9
Q
What does silver do?
A
- it is a precious metal
- it isn’t as expensive as gold or platinum
10
Q
What does carbon do?
A
- it is found in several forms (e.g. graphite or diamond)
- it is a major part of all living things
11
Q
What state is oxygen at room temperature?
A
Gas
12
Q
What state is hydrogen at room temperature?
A
Gas
13
Q
What state is copper at room temperature?
A
Solid
14
Q
What state is helium at room temperature?
A
Gas
15
Q
What state is chlorine at room temperature?
A
Gas
16
Q
What state is sodium at room temperature?
A
Solid
17
Q
What state is sulphur at room temperature?
A
Solid
18
Q
What state is magnesium at room temperature?
A
Solid
19
Q
What state is silver at room temperature?
A
Solid
20
Q
What state is carbon at room temperature?
A
Solid
