potions and poisons - macombso.org

Potions and Poisons

Regina Zibuck

rzibuck@wayne.edu

Safety First

Students must wear:

◦ Closed shoes with socks

◦ Long pants

◦ Lab coat or lab apron with long sleeve shirt

◦ Indirect vent or unvented chemical splash

proof goggles.

◦ Long hair (shoulder length or longer) must be

tied back.

◦ Visorgogs are permitted

Recommended Lab Equipment for Div B

❖Very long list at

https://www.soinc.org/sites/default/files/uploade

d_files/RecommendedLabEquip_DivB_121718.

pdf

❖Graduated cylinders, beakers, test tubes etc

What Students May Bring/team

1 page of notes (8.5X11”) with information on

both sides

2 Calculators

writing instruments

The Competition

Written Exam (60 %)

◦ Typical chemistry topics

◦ Household chemicals

◦ Toxic living organisms

◦ Environmental toxins: iron, copper, and

mercury

Lab (40%)

◦ Minimum of one lab activity

Chemistry

Ionic and covalent bonds

Mixtures, solutions and compounds

Techniques to separate components of a

mixture

Physical and chemical changes

Balancing chemical equations

Effect of dilution on toxicity

Poisons

There are many poisons around the house that middle school students should know about.

You should not mix cleaning products and understand why

Middle school students should understand that drugs undergo reactions that cause them to either become ineffective or poisonous.

Middle school students should understand that cleaning products should not be consumed

Household chemicals

Ammonia (ammonium hydroxide, NH4OH)

Hydrogen peroxide (H2O2)

Rubbing alcohol [isopropanol,

(CH3)2CHOH]

Bleach (sodium hypochlorite, NaOCl)

Epsom salt (magnesium sulfate, MgSO4)

Vinegar (acetic acid, CH3CO2H)

Calcium supplements (Ca2+)

Iron supplements (ferrous, Fe2+)

https://www.nsf.gov/news/special_reports/c

hemistrynow/chem_cleaners.jsp

https://www.poison.org/

http://www.goodhousekeeping.com/home/cl

eaning/tips/a32773/cleaning-products-never-

mix/

Toxic Living Organisms

Recognize the organism

Found in what location?

Toxicity?

What is the identity of the toxin?

Mode of action of the toxin?

Treatment if any?

Poison ivy (Toxicodendron radicans)

Wild Carrot (Daucus carota)

Autumn Skullcap (Galerina

marginata)

Henbane (Hyoscyamus niger)

Oak (Quercus sp)

Timber Rattlesnake (Crotalus

horridus)

Eastern Coral Snake (Micrurus fulvius)

Cotton Mouth Snake (Agkistrodon

piscivorus)

Brown recluse Spider (loxosceles

recluse)

Black Widow Spider (Latrodectus

mactans)

Poisons

There are also poisons in our environment that middle school students need to understand

Middle School students should understand that metal ions can get into drinking water from chemical spills

Middle School students should understand that many organic molecules are also dangerous

Middle School students should understand that how dangerous something is will depend on its concentration and how to dilute.

Environmental Toxins

Iron

Copper

Mercury

Students should be able to answer

questions about the types of heavy metals

that might be found in drinking water or

soil.

How and Why this might happen?

Potions In this part of the event we are going to

focus on aspects of chemistry that might

seem like “MAGIC”!!!!!

Middle School students can understand

a lot of the concepts without having to

understand all of the chemistry

LAB ACTIVITIES

Chromatography

Separation of a mixture

Serial dilution

Determination of pH

Conductivity testing (ionic vs. covalent

bonding)

Physical and chemical changes

Rate of a chemical reaction

Evidence of a Chemical Reaction

Temperature change

Color change

Production of a gas

Formation of a precipitate

Students should be able to balance a simple

chemical equation where the reactants and

products are already given.

https://middleschoolscience.com/2017/03/05/balancing-equations-a-

hands-on-activity/

Potions mixing two reactants together results in a

drastic change in color

mixing two liquids together forms a solid

mixing two liquids together a gas is given

off

mixing two liquids together heat is given

off or taken it

mixing two liquids can produce an

immediate reaction, a delayed reaction, or

a reversible reaction

Potions Students will be able to mix

reagents together and on the basis

of what happens, they should be

able to classify the reaction as:

No reaction

Precipitate reaction

Drastic color change

Gas release

Heat release/heat intake

Delayed reaction

Hydration/dehydration

Acid/Base titrations

Potions

Separating chemicals that have been

mixed would also have seemed like

“MAGIC” in the middle ages

Students may be asked to separate

components of a mixture.