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Science quiz review
1. Recall safety rules of a science lab. (WHMIS)
a.
2. List examples of elements, mixtures, and compounds.
a. Elements: hydrogen; oxygen; iron; zinc, Mixtures: sea water; crude oil, Compounds: water; sugar; salt
3. Compare and contrast the properties of elements, mixtures and compounds.
a. Elements consist of a single kind of atom;
They have unique, fixed properties;
They cannot be separated into simpler unique substances.
Compounds consist of two or more kinds of atoms bonded together;
They have unique, fixed properties not related to the properties of the components.
The can be separated into elements using chemical means such as electrolysis.
Mixtures consist of two of more kinds of atoms or molecules mixed together, but not bonded.
They have properties that are an average of the properties of the components.
The properties can vary depending on the proportions of the components in the mixture
They can be separated into simpler materials by physical means such as distillation, filtration.
4. Discuss how a substance’s physical and chemical properties is used in everyday life.
a. We use odor to identify many food products, we use texture to feel many things in everyday life, we check for signs telling us about the toxicity of a product.
5. Identify physical and chemical properties of a known substance.
a. N/A
6. Describe physical and chemical properties. (viscosity, combustibility)
a. Color: colorless, red, black
Odor: smell
State: solid, liquid, gaseous
Texture: rough, smooth, bumpy
Luster: how shiny or reflective something is
Malleability: how a metal can be bent and twisted into practically any shape without cracking or rupturing, and beaten or rolled into very thin sheets.
Viscosity: resistance to flow
Boiling point: temperature of boiling
Melting point: temperature of melting
Solubility: ability to dissolve in another substance
Hardness: ability to scratch another material
Conductivity:
1. Recall safety rules of a science lab. (WHMIS)
a.
2. List examples of elements, mixtures, and compounds.
a. Elements: hydrogen; oxygen; iron; zinc, Mixtures: sea water; crude oil, Compounds: water; sugar; salt
3. Compare and contrast the properties of elements, mixtures and compounds.
a. Elements consist of a single kind of atom;
They have unique, fixed properties;
They cannot be separated into simpler unique substances.
Compounds consist of two or more kinds of atoms bonded together;
They have unique, fixed properties not related to the properties of the components.
The can be separated into elements using chemical means such as electrolysis.
Mixtures consist of two of more kinds of atoms or molecules mixed together, but not bonded.
They have properties that are an average of the properties of the components.
The properties can vary depending on the proportions of the components in the mixture
They can be separated into simpler materials by physical means such as distillation, filtration.
4. Discuss how a substance’s physical and chemical properties is used in everyday life.
a. We use odor to identify many food products, we use texture to feel many things in everyday life, we check for signs telling us about the toxicity of a product.
5. Identify physical and chemical properties of a known substance.
a. N/A
6. Describe physical and chemical properties. (viscosity, combustibility)
a. Color: colorless, red, black
Odor: smell
State: solid, liquid, gaseous
Texture: rough, smooth, bumpy
Luster: how shiny or reflective something is
Malleability: how a metal can be bent and twisted into practically any shape without cracking or rupturing, and beaten or rolled into very thin sheets.
Viscosity: resistance to flow
Boiling point: temperature of boiling
Melting point: temperature of melting
Solubility: ability to dissolve in another substance
Hardness: ability to scratch another material
Conductivity: