Chemicals/ Reactions
List 3 major greenhouse gases
Any of:
carbon dioxide, methane, ozone, water vapour
The sun is the primary source of energy for planet Earth.
True or false?
Answer: True
List two human impacts on climate change.
Any of:
Deforestation
Mining
Burning fossil fuels
Industrial waste
Travelling
Increase in human population
Which statement best describes the main aim of the Paris Agreement ?
A. To reduce global temperatures by 1.5°C every year
B. To keep the increase in global average temperature well below 2°C and aim to limit it to 1.5°C above pre-industrial levels
C. To stop all greenhouse gas emissions immediately
D. To prevent countries from using renewable energy sources
B. To keep the increase in global average temperature well below 2°C and aim to limit it to 1.5°C above pre-industrial levels
What food is Ms Lee allergic to?
Shin ramyun!
Write down the respiration word equation.
Glucose + oxygen → carbon dioxide + water
What is the difference between greenhouse effect and enhanced greenhouse effect?
The greenhouse effect is the natural process where greenhouse gases trap heat in Earth’s atmosphere.
While enhanced greenhouse effect is the warming of Earth due to human activities.
What are the 2 major chemicals that contribute to acid rain?
Nitrogen oxide
Sulfur dioxide
What are the two renewable fuels? Where are they sourced from?
Bioethanol and biodiesel
From plants - sugar cane or corn
List all the days of the week, period number and room numbers Ms Lee has science class with you weekly.
Monday- P5 - F12
Wednesday - P4 - D09
Thursday - P2 - F12
Write the photosynthesis word equation.
Carbon dioxide + water → glucose + oxygen
Sunlight is on top of arrow
List all the 4 spheres on Earth WITH an example of each one.
Hydrosphere, biosphere, atmosphere and lithosphere.
+ example
What is petrol made from?
Explain why it is a non renewable energy and state how it is bad for the environment.
Crude oil
Non - renewable as it will run out one day and cant be replaced.
Burning of petrol release large amounts of carbon dioxide in the atmosphere, increasing the greenhouse effect.
Define green energy. List the 3 examples.
Green energy comes from sustainable sources that do not produce carbon dioxide (CO₂) when used and do not release harmful pollutants.
Wind, solar and hydroelectric energy
List all the classes Ms Lee teaches this year.
9 adv maths, 9 science, 12 chem, 11 chem
Write down the combustion word equation.
Include "energy" in your equation too!
Fuel + oxygen → carbon dioxide + water + energy
Define carbon footprint.
A carbon footprint is the total amount of greenhouse gases released by a person, activity, product or organisation.
Explain how ocean acidity works.
What acid is produced?
How does it affect marine life?
When large amounts of Co2 is released into the ocean and dissolves into the ocean water, Co2 reacts with water and produces carbonic acid.
Carbonic acid can corrode the shells of sea shelled animals and corals --> bleaching. This results in their death.
Discuss the limitations of using hydroelectric power and limitation of using bioethanol.
Limitations
Hydroelectricity depends on water supply and suitable dam locations.
Bioethanol provides less energy than petrol (about 60%), so more fuel is needed.
Who is Ms Lee's current favourite NBA player? Also, this is so random but list 2 pets she had in the past.
Steph Curry
Goldfish/turtle/hamster
Write the balanced photosynthesis chemical equation.
6CO2 + 6H20 --> C6H12O6 + 6O2
sunlight on top of arrow
Explain three global evidences that shows global warming on Earth’s systems.
Any of:
Global warming melts ice caps and raises sea levels in the hydrosphere.
It also causes habitat loss and coral bleaching in the biosphere in the great barrier reef.
Bushfires occuring more often, increasing carbon emissions to our atmosphere
Define "carbon sink". List 3 examples.
Carbon sinks are natural or artificial reservoirs that absorb and store carbon dioxide gas.
Any of:
ocean, forests, soil, wetlands
Explain the 3 steps of Carbon capture and storage (CCS)? Which part does Geosequestration refer to?
Carbon Capture and Storage (CCS) is a process used to reduce the amount of carbon dioxide (CO₂) released into the atmosphere from power stations and factories.
The 3 main steps are:
Geosequestration refers to the third step — storage.
It specifically means storing CO₂ deep underground
State 5 things Ms Lee carries in her pencil case, always!
Any of:
1. white board markers
2. scissor
3. ruler
4. pen/pencil
5. bulldog clips