Hmmm,What is Science???Science is a systematic study of natural phenomena and how they affect our lives .This is divided into two which is scientific knowledge and technology .Scientific knowledge is the information obtained from the study of natural phenomena and technology means the application of scientific knowledge for the use of mankind.Snow, tsunami, earthquake, volkanism, global warming are the examples of natural phenomena. Communication such as TV satellites, telephone and laptop.Transportation such as Cars, aeroplane, bus. Agriculture such as Hydroponic method, tractor,and fertilizer. Medical such as Vaccines, antibiotic, X-ray are the examples of technology.
There is a lot of career in science ,I listed 15 career that i know
They are 1)Geologist
In science we also learn what these careers learn such as Biology .They study about living things such as plants, animals,and humans.Geologist study about rocks, soil, minerals, charcoal, and natural gas. Meteorology study about weather and climate change such as rain and storm.
In this chapter we will also learn about science laboratory it is about the apparatus and the use of it.
To heat small amount of chemical
- Boiling Tube
- Test Tube
- Conical Flask
- Flat Bottom Flask
- Measuring cylinder
- Tripod Stand
- Wire Gauze
- Filter Funnel
- Gas Jar
- Retort Stand With Clamp
- Evaporating Dish
Next, we also learn about physical quantities and their units.What are physical quantities??Physical quantities are a physical characteristic that can be measured. The base quantities are length, mass, time, temperature and electric current .
Length is the distance between two points.The S.I. unit for length is meter ,millimeter,
kilometer , centimeter .The symbol of the S.I. unit is m,cm,km,mm.We use measuring tape and ruler to measure length.
Mass of an object is the quantity of matter. The S.I. unit for mass is kilogram, milligram, gram. The symbol of the S.I. unit is kg,mg,g.We use lever balance and triple beam balance for mass
The S.I. unit for time is second,minute,hour,day,month,year,and decade.The symbol of S.I. unit for time is s,min,hr.We use stopwatch for time.
The temperature is the degree of heat of an object.The S.I. unit for temperature is kelvin and celcius .The symbol of the S.I. unit is K and `C .We use clinical thermometer and laboratory thermometer for temperature.
The S.I. unit for electric current is ampere. The symbol of S.I. unit for electric current is A.An ammeter is used to measure electric current in a circuit .