Science Exam Review

Qualitative

The quality (ex. colour, texture, size, ect)

Quantitative

The number (ex. measurements, temperature, density)

Physical properties

1. State 

2. Colour

3. Texture

4. Lustre (solid only)

5. Hardness (can it be scratched) (solid only)

6. Malleability (can it be bent) (solid only)

7. Ductility (can it be stretched) (solid only) 

8. Viscosity: (liquid only) can it pour easily? Yes, non-viscous. No, viscous.

9. Oder

10. Taste (DO NOT USE IN LAB)

11. Form (under microscope) same, crystalline. Random, Amorphous.

12. Conductivity

13. Characteristic: unique to each substance (boiling point, melting point, freezing point.)

14. Density

Physical change examples

• cutting

• Breaking

• dissolving 

Chemical changes examples

• Cooking

• Rusting

• rotting

Classification of matter

Solid:

• Constant shape and volume

Liquid

• Constant volume and can change shape

Gas

• Can change shape and volume

3rd wire (electrical outlet)

Ground:

• A pathway to the ground (Earth) to rebalance extra electrons

 Ontario electricity use

• Ontario mainly uses Nuclear and hydroelectricity

Series circuit

• One pathway, many loads

• More loads = more current

• Resistance = less current

• Starts and ends with the power supply

• All on or all off

Parallel circuit

• Many paths, one load per path

• More loads = less resistance

• Broken path = everything works 

Examples of static electricity

• Socks on carpet

• Drying laundry

Applications of static electricity:

1. To clean air 

2. Spray paint

3. Photocopiers

4. Electrostatic speakers

Inner planets

1. Mercury

2. Venus

3. Earth 

4. Mars

Motions of the Earth

Revolution: 365 days

Rotation: 24h

Exoplanet

• Orbits other stars 

• 6200+ discovered June 2026

Abiotic vs. Biotic

Abiotic:

• Non-living thing

Biotic:

• Living things

biodiversity

• Variety of animal species 

Community vs population

Community:

• Different species 

Population:

• One species

Carrying capacity

• When  a population stabilizes and is the max an environment can support

What can cities do to become more sustainable?

Green Building:

• Good insulation

• “Green” roofs (plants

• Solar panels 

• Low energy appliances 

Clean energy systems:

• Solar

• Wind

• LED street lights 

Sustainable transportation:

• Electric buses 

• Subway (not cars)

• Bikes lanes 

• Car-free zones

• Charging stations (EVs)

Waste management:

• Encouraging recycling

• Composting

• Ban single use plastics 

Urban green spaces:

• Parks 

• Community farm/gardens 

• Tree planting

• Rooftop gardens 

What are your thoughts on sport fishing?

Sport fishing and hunting is unethical

Sport fishing:

• Hooks damage fishes mouths causing injuries that might affect its hunting disrupting the food web

• Fish are under stress and can lead to death

• Releasing the fish into the water can still cause injuries 

• Fish can get infections from hook injuries 

• Better than sport hunting because the fish have a chance of survival after being released

Sport hunting: 

• Killing animals for no reason 

• Animals can get injured trying to escape and have a long painful death

• Can disrupt food webs if too many of one species is killed and can lead to extinction of animal species

How can I tell a solar eclipse from a lunar eclipse?

Solar:

• Less common and can only be seen from specific locations

• Can be dangerous to our eyes 

• Happens when the moon covers the sun and casts its shadow on Earth and everything becomes dark

• Only happens for a few minutes 

Lunar:

• More common and can be seen form any location

• Often known as a blood moon or a strawberry moon

• Can last for hours 

• Happens when the Earth covers the sun casting its red light onto the moon

Name all 8 planets and at least 5 moons from our solar system

Planets:

1. Mercury 

2. Venus

3. Earth 

4. Mars

5. Jupiter

6. Saturn

7. Uranus

8. Neptune 

Moons:

• IO

• Titan

• The Moon

• Europa 

• Ganymede

• Callisto