Health
Does smoking significantly damage your lungs?
Yes.
Does diffuse reflection have reflecting rays at different angles?
Yes.
A trail mix is an example of...
A mixture.
Do Polymers have strong bonds or weak bonds?
Strong bonds.
An acid-base reaction is a more specific type of what type of reaction?
A chemical reaction.
What tissue does smoking damage? (The one represented by the balloon inside the balloon).
Alveoli tissue.
Which light property is caused by small openings or obstacles?
Diffraction.
What are the two types of mixtures?
Heterogenous & Homogenous.
What are the molecules that make up Polymers called?
Monomers.
What is the range of the pH scale?
0-14.
What are alveoli?
Tiny air sacs in the lungs.
What property of light bends the light when it reaches another medium at a different speed?
Refraction.
Name one way a solution can be separated.
- Manual Separation
- Magnetism
- Filtration
- Evaporation
- Condensation
- Chromatography
- Distillation
- Crystallization
Why does water not leak out of a ziploc bag if you pierce it with a pencil?
The (polymer) bonds bend, not break.
How do you know if a substance is acidic or basic?
The pH levels. acid<7<base.
Why does smoking make you cough more?
Your lungs can't clean out the increased mucus/more mucus.
In refraction, does the speed of the light increase or decrease as it passes through glass (a medium)?
It decreases.
Name three Signs of Chemical Change.
- Color Change
- Odor Production
- Temperature Change
- Gas Formation
- Solid Formation
Does honey have high or low viscosity?
High viscosity.
What is more acidic: Water pH=7 or Ammonia pH=14?
Water. (Acids have a lower pH).
Name at least 3 side effects from smoking we discussed.
- Problems in airflow: inflammation, destruction of the lungs.
- Mucus & infections: mucus, cough, infection, faster-aging lungs.
- Fewer cilia.
Which type of reflection occurs on smooth and not rough surfaces?
Specular Reflection.
What needs to happen to prevent a solution from being separated?
A chemical change needs to occur & a new substance needs to form.
Name one real-life application of refraction?
- Glasses
- Eyes
- A prism
- A jar
- Binoculars
- Telescopes
- Microscopes
- Glass
What is the name of oxidated metals?
Metal Oxides.