Rock Eater: Will the Vinegar Destroy the Chalk?

 Purpose
The Purpose is to demonstrate the effect of acid on rock statues.

Prediction
I think the vinegar will leave a chunk of chalk in the jar.

Procedure

Materials

• chalk 
• vinegar
• glass

Procedure

• Fill the glass a quarter full with vinegar
• Add a piece of chalk to the glass
• Observe results

Results

• The first time only a little chalk turned into powder, so I did the experiment again. the second time the same thing happened.
• I tried inside chalk and vinegar out side and inside but that did not change it.
• I tried small pieces  but that did not change it
• In each experiment bubbles came up.

video of bubbles

What I Learned

• Experiments are not text book perfect
• Vinegar does not destroy rock
• A stronger acid might work

What else can this be applied to

Acid rain, another weak acid

chalk without vinigar

 

chalk with vinigar

small pieces                                                                               big piece

small piece 

outside

inside

Earthquakes

First Experiment: Easy Over

Purpose

The purpose is to demonstrate how hard it is to fold Earth's crust.

Prediction
It is harder to fold paper when its thick.

Materials

• 1 sheet of newspaper

Procedure

• Fold paper in in half until you cant fold any more
• Record results

Results

• I folded it 9 times.
• It became too hard to fold after that.

What I Learned
The Earth's crust is not easy to fold when its thick.

New Experiment: Folds

Purpose 
The purpose is to see where the earth goes when its pressed into the middle.

Prediction

I think it will  bunch up.


Materials

• a cup of water
• 4 sheets of  paper towels

Procedure

• Stack paper towels
• Fold towels in half
• Pour water in the middle
• Press it into the middle
• Observe results

Results
The paper towels went into a "n" shape (a wave shape).

Spoon Pen

 Purpose

To demonstrate a mineral streak.

Materials

• Porcelain tile (use back of tile)
• metal spoon
• aluminum can

Procedure

1. rub the spoon handle across back of the tile.
2. write your name with the spoon
3. rub the aluminum can on the porcelain tile and compare

Results

• the spoon makes  a dark grey mark.
• the can makes a silvery mark
• the spoon is stainless steel.

What I Learned:
A streak test is used by rubbing a metal on to porcelain.

What else can this be applied to:
There are many other things this can be applied to but here are two: welding and finding out what metal you have.

Experiment 3: Galactic Eggs

This experiment's about the earths solids and liquids and how that affects earths spin.
Procedure

• boil a egg and grab a raw one.
• let the boiled egg sit for about 20 minuets
• use a pen to mark them 1 & 2.
• place both eggs on a flat surface and then spin

The raw egg wobbles and stops. the cooked egg keeps on going. The egg is like earth because when its raw it has liquid inside. the earth has layers with liquid and that affects the earths spin. The liquid does not start spinning with earth right away.It affects the earth slower.

Experiment 2: Earth's Axis

Today i learned how the earth spins on its axis.

First use modeling clay to make a ball the size of a marble. Next put a toothpick through  until you see the tip. Than see how it spins.

I learned that the earth does not spin strait it spun circular.  The top goes in a bigger circle.

#1 Science Experiment

 My first Home school science class!

 Mom cant read instructions so it did not work well.

This taught me that the Earth is not only round, it's flat at the poles. It is a shorter distance between the poles than across.(44 miles on Earth) this applies to planets such as Mars and Venus.  Tomorrow I will do the experiment Eclipse.