Properties of Matter

Chemical and Physical Properties

Riddles: What Am I?

OI am soft and yellow. I make your hot “pandesal” tasty. What am I?

OBUTTER

OI am small and gritty. I am added to soups to make them tasty. What am I?

OSALT/MSG/GINISA etc.

OI am yellow and shiny. Because I do not react with air or acid, I am used for jewellery. What am I?

O GOLD/ AU/ AURUM

OI am a white liquid. Babies like to drink me. Your mother also tells you to drink me every day. What am I?

OMILK

OI am usually slim and thin. My skin is smooth. My head burns to give off light. What am I?

OCANDLE

OI am a colorless liquid. I can kill germs upon contact. I evaporate fast when applied to your skin. What am I?

OALCOHOL

OI am small, slim, hard and pointed. My partner hits me hard to get me in, and pulls me strongly to get me out. What am I?

O NAIL

OI am made up of two elements– one supports combustion, the other explodes with a spark. What am I?

OWATER/ H₂O/ (HYDROGEN/OXYGEN)

OI have big beautiful eyes and long neck that make me stand out in my kingdom. You can see me in savannah. What am I?

O GIRAFFE

OI breathe in a green house gas to produce food, I breathe out oxygen to make you live. What am I?

O PLANT

Physical PropertiesProperty that can be specified without reference to another substance and that can be measured without causing a chemical change.

OIntensive OExtensive

IntensiveOColorODensityOTaste OBoiling pointOFreezing pointOMelting pointProperties regardless of the

amount

ExtensiveO VolumeO ShapeO SizeO DiameterO MassO LengthO HeightO Weight Properties which depend on the amount

Chemical PropertiesOCombustionOAbsorb Green house gasOReactivity/non reactivityOAbility to burnOKill germsAbility of a substance, either by

itself or with other substances to undergo a change into new substances.

Changes in Matter

Physical ChangeChemical Change

Physical Change

OMelting iceOBreaking glassOCutting paper

Chemical Change

O Changes in the physical stateO Cannot return in its original state• Burning

Evidence of Chemical ChangeChange colorEvolution of smoke Increase in temperature

Homework

OWhat are the three states of matter?

ODescribe each and give examples.

OBring a candle (by group)