Test 2: April 2016 Flashcards
Name 3 substances
Solid, liquid, gas
Explain Solids
We can touch it
We can feel if it is hard or soft
Does not change shape
Explain Liquid
Liquid flows
Takes on the shape of its container
Most of the earth is covered in water, flows in rivers or falls as rain
Can stay in an open container
Explain gas
Gas does not have a definitive shape
Spreads to fill the space it is in
Air is invisible and we need it to breathe
Cannot stay in an open container
Name 3 solids
Frozen water - ice Watch Jewellery Crayon Wood Ruler
Name 3 liquids
Juice
Milk
Water - most of the earth is covered in water, flows in rivers and falls as rain
blood
Name some gases
Cooking gas Steam Smoke Mist Air Oxygen
Name water as a solid, liquid, gas
Solid - ice
liquid - water
gas - water vapour
What is evaporation
When liquid is heated and starts to rise and turns to gas
example:
water turns to water vapour
WATER TURNS TO GAS
What is condensation
When gas is cooled and turns to liquid
example
gas (water vapor) is cooled and turns into water - a cloud
Name the process when water changes into a gas
Evaporation
Name the process when water vapour changes into a cloud
Condensation
Name the process when rain changes into a solid
Solidifying
Where does evaporation take place
surface of water when heated
Clay is manufactured into
ceramics like cups
Oil is manufactured into
Plastic like toys and tyres
Wood is manufactured into
Paper, desks
Sand is manufactured into
Glass
Plant fibre is manufactured into
clothing and fabric
Wool from sheep is manufactured into
Jerseys and carpets
Cow hyde is manufactured into
Leather shoes, bags
Name the properties of sand
Soft
Absorbent
Heavy
Name the properties of Latex
Soft
liquid
sticky
Name the properties of clay
soft
heavy
malleable
Name the properties of skins
soft
waterproof
malleable
Name the properties of wool
soft
flexible
absorbent
Name the properties of glass
hard
breakable
transparent
waterproof
Name the properties of rubber
flexible
waterproof
Name the properties of leather
waterproof
flexible
strong
Name the properties of fabric
flexible
soft
light
absorbent
Name 3 types of structures
Shell structure
Solid structure
Frame structure
Name 3 frame structures
bicycle
umbrella
bridge
tower
What is indigenous
Somebody or something that is found naturally
name and explain the house a san person made
The move so often that the house does not need to be strong.
Made the frame and covered materials in the area
Called a hut
name and explain the house a zulu person made
Make the frame into a dome shape. They weave sticks and use mud to hold it together . Cover frame with grass.
Name Rondavel
Name and explain a xhosa hut
Strong frame with mud, grass and rocks. Mud floor
