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36 Cards in this Set
- Front
- Back
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Property
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A characteristic that may help to identify a substance.
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State
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A substance can be a solid, liquid or gas or may be found in all 3 states (eg water)
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Melting Point
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The temperature at which the solid form of a substance becomes liquid
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Freezing Point
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The temperature at which the liquid form of a substance becomes solid
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Boiling Point
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Temperature at which the liquid form of a substance changes to a gas
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Matter
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Anything that has mass and occupies space
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Mass
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The mass of an object is a measure of the amount of matter in the object
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Volume
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A measure of the amount of space that is occupied by matter
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Density
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It is the mass per unit volume of a substance
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Name 6 properties
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colour, taste, texture, odour, lustre, and clarity
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How much oil is in eulachons?
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20% by weight
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How have aboriginal people used eulachon grease?
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To season food, preserve fruit, lubricate tools, use as medicine
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What are your five senses
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sight, touch, hearing, smell, taste
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What is the melting point of ice?
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0 C
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What is the freezing point of water?
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0 C
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What is the boiling point of water?
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100 C
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What kind of mass measurement do we usually use for smaller masses? Larger Masses?
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grams (g)
Kilograms (kg) (kilo means 1000) |
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What is the formula for measuring the mass of water?
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Mass of water = (mass of container + water) - mass of container
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How can you measure a small volume of a liquid?
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directly in a graduate cylinder
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What is a graduate cylinder?
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A tall, narrow container w/ a scale of numbers on the side.
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How do you read a graduated cylinder?
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First you read the scale of numbers. When you look at a liquid in a graduated cylinder you will notice it has a slight curve. Read the volume at the bottom of the curve.
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What is a meniscus?
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The curved surface where the liquid touches the cylinder.
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What measurement is volume usually measured in?
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litres (L) or millilitres (mL)
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What is the formula for calculating the volume of a regular solid?
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volume = length x width x height
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When will volume be in cubic centimetres? (cm3)
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If you measure all the sides in centimetres.
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When will volume be in cubic metres? (m3)
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If you measure all the sides in metres.
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What is the same as 1 cm3 and 1L?
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1ml and 1000 cm3
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How do you measure the volume of an irregular solid?
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Choose a container that a irregular solid will fit inside. pour water into the empty container until it is about half full. Record the volume of water in the container and then carefully add the solid. Make sure that the solid is completely submerged int the water. Record the volume of the water plus the sold.
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What is the formula for measuring the volume of an irregular solid?
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volume of solid = (volume of water + solid - volume of water
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When are you comparing densities?
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When you compare the masses of the same volume of different substances.
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Why does oil float?
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It is less dense than water
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How is density calculated?
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By dividing the mass of an amount of substance by its volume
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What is the formula for finding density?
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Density = mass
-------- volume |
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What does each substance have?
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Its own unique density
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How much density does water have?
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1.0 g/mL
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How do liquids and solids float? sink?
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float : have a density less that 1.0 g/mL
Sink: have a density more than 1.0 g/mL |
