Big nose balloon

This week in chemistry my mini project was sticking a toothpick into a balloon without having the balloon pop.

The trick was to:

1.Use the very pointy side of a very pointy toothpick.
2.Then spread a lot of lubricant on the balloon's center and the toothpick.
3.The lubricant is spread on the balloon's center top because it is the thickness.
4.Then proceed to then sick the toothpick in the subjected area.
5.This experiment was great and very fun to do. A mini project I wont forget.

Science: I was able to stick a toothpick in a balloon without having the balloon pop because of air pressure. Air density builds to whatever level balances the force of gravity, because at this point gravity isn't strong enough to pull down a greater number of particles.

Play Flour

With a mix of brilliant mixtures I made Play-Dough.

Heres the trick:

1.First of all put a solution on the a hot plate.
2.Put the flour down on it.
3.Heat this flour and mix it by stirring this flour.
4.Drop in some food coloring to add an effect for color.
5.Keep Mixing until dough is ready and heated.
6.Turn of the burners and let it set. Soon you will have Play-Dough.

Science: The chemicals mixed form a compound. The compound is essentially a starch-based binder mixed with water, salt, lubricant and preservative. To be more specific, it contains:

1.Water
2.Starch-based binder
3.Retrogradation inhibitor
4.Salt
5.Lubricant
6.Surfactant
7.Preservative
8.Hardener
9.Humectant
10Fragrance
11.Color

Each of these ingredients has an effect on the compound's texture, fragrance and appearance. One of the major contributors to the softness and texture of Play-Doh compound is the interaction between its two primary ingredients - starch-based binder and water. To understand how the dough works, you have to know a little about starch and what happens when it comes into contact with water.Starches are polysaccharides, or strings of sugar molecules.

No gravity

Today I help a cup of water upside down while keeping the water in by placing a piece of paper under the opening of the cup. Isn't that great!!

Here are the tricks:

1.Fill the cup up with water half way.
2.Get a thick piece on paper.
3.In one quick movement flip the cup to the paper side so that the cup is covered by the paper.
4.Then maintain holding the cup upside down with the paper under to keep the air pressure so there will be no leakage.

Science: Amospheric pressure is the force per unit area exerted against a surface by the weight of air above that surface in the Earth's atmosphere. In most circumstances atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point. Low pressure areas have less atmospheric mass above their location, whereas high pressure areas have more atmospheric mass above their location. Similarly, as elevation increases there is less overlying atmospheric mass, so that pressure decreases with increasing elevation.




Photo credit by Mo Allezeh

Lewis Dot Structure

The Lewis Dot structure was named after the scientist Gilbert L. Lewis. The Lewis Dot Structure is basically a diagrams that show the bonding between atoms of a molecule, and the lone pairs of electrons that may exist in the molecule. They are similar to electron dot diagrams in that the valence electrons in lone pairs are represented as dots, but they also contain lines to represent shared pairs in a chemical bonds the structure has single, double, triple etc... bonds. A Lewis structure can be drawn for any covalently bonded molecule, as well as coordination compounds. There are many rules in The Lewis Dot Structure for example is hydrogen (H), which has only a single valence electron and tends to react to attain either 0 or 2 valence electrons. When H has two electrons in its valence shell, it could be said to obey a "duet rule", and achieves a valence shell electron configuration equivalent to helium (He). Also The total number of electrons represented in a Lewis structure is equal to the sum of the numbers of valence electrons on each individual atom. Non-valence electrons are not represented in Lewis structures. Next is placing the lone pairs once the total number of available electrons has been determined, electrons must be placed into the structure. They should be placed initially as lone pairs. one pair of dots for each pair of electrons available. Lone pairs are most likely placed on the outside. The Lewis Dot Structure placing depends on the atom. More bonds the atom has it will be placed more towards the middle in the drawing.

Hint: H(Hydrogen) O(oxygen) N(Nitrogen) C(Carbon)
1 2 3 4........................ These are the number of bonds


Watch Video: Lewis Dot Structure

Field Trip

This trip was great time a day to get away from school and relax in nature. I was just surrounded by people ans trees and plants. The best part was hanging out my friends and talk about we like. I'm really not a nature person so the trip was alright. We ate, took pictures, and walked basically so yea...




View Mills HIgh Trip in a larger map

Mini Prtoject

MINI PROJECT= BEND GLASS W/ FIRE
you will need:
1.goggles, safety first
2.bunsen burner
3.piece of thick or thin glass
4. gas outlet
5. thongs to hold heated glass
6.broom and dustpan to clean broken glass
7. remember to always be safe
Bending the Glass TubeTo bend a piece of glass tube you should have a fish tail jet set in the end of the Bunsen burner to give a wide flame like an illuminating burner. Hold the tube over the flame of the burner, or alcohol lamp until it is heated red hot all along the place you want to bend it. It gets hot enough in which it is not hot enough to liquify bu too hot to stay solid so be safe and have fun.

Photo credit to Mo Alize hahahaha!