Home Technology, Safety and First Aid
AdvancedHome safety starts with risk assessment: identify hazards across places, put safety measures and an emergency plan in place, and grasp first-aid principles. Manage family resources with budgets, the 3Rs and energy labels, and care for every member with healthy design and efficient appliances.
- Risk assessment in three steps — identify, weigh, control — works at home and at school alike
- First aid puts scene safety and calling for help first; prevention beats first aid, and skills come from accredited courses
- One page, complete: contacts, routes, meeting point and kit — drilled by the whole family to work
文體小知識：生活科技說明文：以風險評估為框架說明家居安全與應急安排，並延伸至資源管理、環保策略與家居科技的選擇。
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1Home is where we relax, and also where accidents happen. Risk assessment has three steps — identify hazards, judge likelihood and severity, then control them: slippery bathrooms, overloaded sockets and blocked escape routes are classic Hong Kong household risks, and schools, malls and countryside each need their own checklist.
2Emergency readiness is done in advance. A one-page family plan lists emergency contacts, escape routes, a meeting point and a supplies checklist, and one family drill beats memory under stress. First aid follows basic principles: secure the scene, call for help quickly, and leave serious cases to the professionals.
3Running a home is resource management. Budgets list income and fixed expenses; payment methods have trade-offs; peers and advertising sway purchases. The 3Rs and energy labels put resources to good use, while inclusive design, lighting, air conditioning and flooring choices keep every family member safe and comfortable.
4Household technology also lives in the kitchen. Foaming whips air into egg white for light sponges; emulsification turns oil and vinegar into smooth sauces. Food development runs from idea to trials and cost calculation, like small-scale product development. Energy-saving appliances such as pressure cookers and all-in-one blenders save time and power — used strictly by the manual.
1Summary 重點摘要
Home safety starts with risk assessment: identify hazards across places, put safety measures and an emergency plan in place, and grasp first-aid principles. Manage family resources with budgets, the 3Rs and energy labels, and care for every member with healthy design and efficient appliances.
2Vocabulary cards Vocabulary
Identifying hazards and judging likelihood and severity.
Immediate help given before professional care arrives.
A plan stating contacts, escape routes and meeting points.
The agreed path from home to a safe place.
Regular payments of a set amount, such as rent.
The mandatory label grading appliances by efficiency.
Design meeting the special needs of the elderly and disabled.
Making oil and water blend into a smooth emulsion.
The trapping of air when egg white is whisked.
A pot that cooks faster by raising pressure and temperature.
3Step by step Steps
- Three steps of risk assessmentRisk assessment makes safety systematic. First identify hazards — water, electricity, fire, falls and choking — by inspecting the place; second judge each hazard's likelihood and severity to rank them; third set controls and review regularly. Different places need their own checks: homes focus on kitchen and bathroom, schools on laboratories and workshops, malls on escape routes, countryside on weather and terrain. For example, assessing the bathroom: a slippery floor is likely and severe, so add non-slip mats, keep ventilation running, wipe puddles, and dry under the washing machine.
- Home safety measuresDefend against common hazards item by item. Electricity: never overload sockets — run high-power appliances from wall sockets — and replace damaged cords at once. Fire: keep a fire blanket in the kitchen, fire doors closed, and escape routes clear of stored boxes. Gas: close the cooker valve before leaving; if you smell gas, do not touch any switch — open windows and seek help outdoors. Falls: fit grab bars and keep passages lit. Store tools safely with blade guards. For example, one extension board feeding a kettle, an induction hob and a toaster far exceeds its rating — a classic fire risk that must be split up.
- Basic principles of first aidFirst aid stabilises a casualty until professional help arrives. The principles: make sure the scene is safe for both of you, stay calm, call 999 and state the location and condition clearly; do not move a seriously injured person or feed them; cool minor burns under running water; press clean dressings on cuts to stop bleeding. Prevention comes first: keep a stocked first-aid box, and take an accredited first-aid course for proper, complete skills. For example, when hot oil spatters an arm: leave the heat source, run cool water over it, cover with clean gauze, and see a doctor if the burn is worse.
- The family emergency planA one-page emergency plan keeps a family calm: an emergency contact list (999, parents' numbers, the concierge or a neighbour), escape routes and a meeting point, special needs of the young and old (infant formula, an elder's medication), a supplies checklist (torch and spare batteries, first-aid box, drinking water, dry food, medicines, copies of key documents), and checks before typhoon and rainstorm signals. The plan must be known, drilled and posted — on the fridge. For example, before a typhoon signal, the family splits tasks: windows checked, water stored, phones charged, meeting point confirmed as the lobby.
- Family budgets and smart spendingResource management starts with the budget: list income, then fixed expenses (rent, utilities, insurance) and variable ones (food, leisure), and keep savings for emergencies. Payment methods trade off: cash controls spending, electronic payments are quick and traceable, credit cards are convenient but tempt overspending and need on-time repayment. Peer and advertising pressure, plus environmental, technological, social and economic factors, all sway choices — ask yourself need versus want. For example, when classmates all upgrade phones, check whether yours still serves; turn the upgrade money into a family-trip fund and spend with your own judgement.
- The 3Rs, saving resources, green strategyHome environmentalism has a method. The 3Rs — reduce, reuse and recycle — start from less packaging and reusable containers through sorted recycling; saving resources targets energy and water, with efficient lamps and Grade 1 energy-label appliances, showers instead of baths; waste is sorted and green products preferred. Green strategy principles include clean and alternative technologies such as solar water heating, managing resources and reserves, and using environmental and energy-efficiency labelling schemes to compare products. For example, when replacing an air conditioner look for the Grade 1 label, set 25.5°C with a fan circulating, and both the bill and emissions fall.
- Healthy design and home environment choicesA good home serves every member. Healthy (inclusive) design answers the special needs of older and disabled people: barrier-free passages, grab bars, night sensor lights, slip-resistant floors. Floor and wall coverings should be slip-resistant, easy-clean and durable; lighting balances brightness and colour temperature — white for reading, warm for rest; air conditioning works with ventilation, and filters are cleaned on schedule. Using space efficiently is also resource management: zoned storage and vertical shelving. For example, for a wheelchair-using family member, widen doorways, ramp the thresholds, and add bathroom grab bars and a folding seat — the whole house flows.
- Food technology and energy-saving toolsHousehold technology thrives in the kitchen too. Foaming drives air into egg white — the lift behind sponges and meringues; emulsification blends oil with vinegar or yolk into smooth mayonnaise. Food development mirrors product development: idea, blueprint, trials with sensory evaluation, then consumer cost calculation, judged by lifespan, function and break-even. Energy-saving appliances — pressure cookers, all-in-one blenders, mincers — save time and power at the cost of purchase and learning, with lifespan and safety as the wider effects. For example, a pressure cooker braises beef ribs in forty minutes instead of two hours, cutting fuel bills — but release all pressure before opening: safety first.
4Diagrams Diagrams
5Worked example Example
Your teacher suggests every family keep a one-page emergency plan. Write one for your home and explain it in a ten-minute family meeting.
- Map risks and needs: list main household risks (fire, typhoon, power cut) and members' special needs (Grandma's blood-pressure medicine, your brother's asthma inhaler).
- Set contacts and meeting point: write down 999, parents' mobiles and a neighbour's number; the lobby is the meeting point, a relative's home the backup.
- Draw escape routes: sketch both the front door and the rear staircase routes, marked no-lift.
- Prepare the kit: torch, spare batteries, first-aid box, three days of water and dry food, regular medicines and document copies — with a fixed storage spot.
- Drill and revise: walk the routes with the whole family, and review medicines and food dates every six months, updating the plan.
- Answer: The value of an emergency plan lies in being concrete and simple beforehand: contacts, routes, meeting point and kit — four parts complete, so nobody has to think under stress. Regular drills and updates keep it usable. Together with everyday risk assessment and safety measures, this single page is household resource management in the safety domain — an hour of preparation buying the whole family confidence.
6Common mistakes Mistakes
7Quick check Quick check
Q1What are the three steps of risk assessment?
Q2What should you do if you smell gas at home?
Q3What is the energy efficiency label for?
Q4Give a daily-cooking example of emulsification.
Q5What are the basic parts of an emergency plan?
8Recap Recap
- Risk assessment in three steps — identify, weigh, control — works at home and at school alike
- First aid puts scene safety and calling for help first; prevention beats first aid, and skills come from accredited courses
- One page, complete: contacts, routes, meeting point and kit — drilled by the whole family to work
- Budgets, payment methods and the 3Rs make family resources go far; energy labels guide smart buying
- Healthy design serves elders and the disabled, and food technology like foaming and emulsifying lives in the home kitchen