Matter
what is the definition of matter
Anything that has mass and volume.
Say the 4 state of matter
Plasma, liquid, solid, and gas
What are the 6 separation techniques?
Sieving Filtration Distillation Chromatography evaporation and distillation
what are two properties?
Physical and chemical properties
How tall does the Eiffel tower get during the summer?
17cm or 6.25 inches
what is pure substance
a fixed competition that has one kind of molecule or atoms.
_______ solid to liquid
Fill in the bank.
Melting
How do we use sieving in real life?
Ex: making tea, making coffee, separating gravel and sand
what are examples of two properties
physical-A gray,brittle metal,low density, conducts electricity
Who invented the telescope?
Hans Lippershey
explain what is elements made of.
(TI) titanium
(O2) oxygen
Find out the process
Water vapor -> Frost
How do we use evaporation in real life?
getting salt from salt water
what is physical,chemical change?
physical- no new substances changed
chemical-new substances changed
How old is the earth? (Scientifically speaking)
4.54 ± 0.05 billion years (?)
explain what compounds are made of
water (H2O)
Carbon dioxide (Co2)
Is ketchup solid, liquid, gas, or plasma?
It is solid and liquid
How do we use magnetism in real life?
we use magnetism to separate iron from the ore
what is gas to liquid?
condensation
What are time zones?
A time zone is an area which observes a uniform standard time for legal, commercial and social purposes. Time zones tend to follow the boundaries between countries and their subdivisions instead of strictly following longitude, because it is convenient for areas in frequent communication to keep the same time.
explain the difference of homogeneous and Heterogeneous.
homogeneous you can't see particles easily.
but heterogeneous, you can see particles.
Say meaning of each four state
1. Solid has definite volume and definite shape
2. Liquid has definite volume but no definite shape
3. Gas has no definite shape and no definite volume
4. Plasma has no definite shape, no definite volume, and charged
What is chromatography used for?
Chromatography is useful for separating a mixture of liquids with different solubilities, like inks. A drop of the mixture is placed on a piece of chromatography paper and dipped in a solvent. Each liquid is carried up the paper to a different height depending on its unique solubility.
what are 4 signs of chemical change?( at least 2)
change in color,energy,gas, and solid
Who are the greatest painters in the renaissance?
Raphaelo, Michelangelo and Leonardo da Vinci