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How is energy wasted?
By Anthropogenic activity. (not me) By leaving on lights. (me) By leaving on the TV whilst you are on the PC or not in the room. (me)
What is the difference between a chemical and a physcial change?
chemical change is easily reversible whilst physical is not reversible
What are differences between natural and manufactured structure?
A natural structure is formed entirely by nature, whilst a building, bridge, etc. is a manufactured structure.
Is their life in a different world?
Whilst it is unlikely that we are alone in the universe we have not yet detected any conclusive signs that life exists outside of the Earth.
why is it important to wear safety goggles inside the laboratory?
During labs the chances for eyes to be exposed to acids, bases, corrosives, and other harmful chemicals is high so goggles can help prevent splattering solutions or chemical particles from going directly into the eyes. Also the goggles help protect the eyes from broken glass and other shrapnel that could occur due to small explosions. The safety goggles are also important to wear because of stinging smells that will make your eyes sting, and also other things in the lab that could damage the cornea or any other parts of the eyes.
Bunsen burner parts?
A Bunsen burner typically consists of a base, gas inlet tube, air control collar, barrel, and burner tip. The base is used to stabilize the burner, the gas inlet tube connects to the gas source, the air control collar adjusts the air flow, the barrel houses the flame, and the burner tip is where the gas mixes with air and ignites.
Why did Robert Bunsen lose an eye?
Robert Bunsen lost an eye due to a laboratory accident. While working with cacodyl cyanide, a highly toxic and volatile compound, the substance exploded and caused severe injury to his eyes. This accident led to the loss of his left eye.
Why is Bunsen burner preferred for laboratory use?
Because it produces a small open flame. A kitchen gas cooker does not have a flame that objects can be placed in. Secondly you can control the temperature of Bunsen Burner. Yellow slack flame is a cool flame Pale blue roaring flame is a much hotter flame. It was invented by the German Chemist , Robert Bunsen. Prior to which objects to be heated had to be put on an open fire, with no temperature control. The Bunsen Burner, whilst still used in the lab, has largely been superceeded by steam and electric mantles, where the temperature can be more closely controlled, together with the fact that mantles are safer pieces of lab. kit.
Why does an airplane have two pilots?
- For safety measures and avoid cases of fatigue - To lower the workload - To better deal with emergencies (1 will handle communications withe ground, whilst the other flies the plane)
What is health and safety all about?
Health and Safety is all about when there is soemthing wrong or something people need to look out for whilst working
What is the use of ceramic triangle?
A ceramic triangle is often used in a laboratory setting as a support for a crucible or other heat-resistant container during high-temperature heating processes. Its triangular shape provides stability and allows for even heat distribution, making it a useful tool for conducting experiments that require precise and controlled heating.
What is the job of each umpire in field hockey?
To implement the Rules of Hockey whilst maintaining Player Safety
What is a crucible and how are they used?
A crucible is a container that is used to hold things whilst they are heated to very high temperatures and typically melted. In the school chemistry lab they are usually small ceramic pots. A substance is placed in the crucible. A lid may be used to cover it. The crucible is heated, typically with a Bunsen burner. A support system is usually used (such as a triangle of pipe clay on wire placed on a tripod) to minimize the risk of burns. In the wider world crucibles can be huge such as those used in steel manufacture and can be made of different materials.
Why are mean median and mode called the measures of center?
Median is finding the middle number among a series. Whilst Mode is finding the middle among a catagorised series.
How do you protect physical safety whilst using computers?
make sure there are no loose carpets no hanging wires no food or drink near computers no overloaded wires
What is workplace regulations?
Employers have a responsibility to ensure the health and safety of themselves and all their employees, customers and visitors. Employers have a legal duty to comply with health and safety regulations and are required to take steps to minimise the risk to employees whilst at work.
What are the different measures of saving water?
take shorter showers use a bucket to catch the wasted water whilst waiting for shower/bath water to go warm recycle water
