Ping Pong Ball Experiment

"This blog is to demonstrate the scientific method. this will be used as a part of my end of topic assessment."
We have done a experiment on how high a ping pong ball bounces. We had a ping pong ball, ruler and some groups had a clamp.
We first had to full out the first steps in the method; the aim, the hypothesis and the method. We then filled out the key variables; the dependent variable (what you meurer) the independent variable (the one you change) and the control variable (the one you keep the same).
The aim is a brief statement of the purpose of the investigation. The hypothesis is a educated guess on what you think will happen. The method is what you will do in the experiment.
Then we did the experiment. we had 5 different heights to drop the ball from and we only had to 3 but I did all 5. We dropped the ball 3 times at each height. Then we found the average of all the drops. Mine were 16.6cm (from 0.2m) 31.1cm (from 0.4m) 44.6 (from 0.6m) 57.3 (from 0.8m) 63.3 (from 1.0m). Then we had to graph the average in our books, here's mine.

Then we had to do the next parts of the method. Writing the discussion (discussing your results), the conclusion (whether or not the results support your hypothesis) and the evaluation ( Discuss how/why your investigation was reliable and how to make it more so). 

That is the method we used to do the ping pong ball experiment.

What do you think?

Blahs look

fiboris lanky cushy sinewy  flexible enslaving wormy monstish addictive hariy strechy wiggly

• picturesque soft  threadlike  tufy slimy jazzy
• variegated

blahs look

fibrosis flexible

enslaving addictive sinewy

soft picturesque wiggly wormy

jazzy monstish hairy stretchy slimy

threadlike tuffy lanky cushy

rubery flat variegated

koosh ball

golden old key

bronze greenish tint amphitheater sparkly oval superannuated pretty diminutive 
metal old-fashioned goldish detailed thin mystical shapy fancy grooved\

lek yod

pretty sparkly

bronze greenish tint  metal

old-fashioned goldish mystical thin detailed 

amphitheater oval superannuated diminutive 

shapy fancy grooved 

old key

DTE work Recap

so far in DTE we have made a work site and a infographic on ergonomics, then we had a go on interland a website that teaches you about cyber smartness. then we went on digital bytes and had a go on that. here is my work

Interland

my infographic

digital bytes

My answers 

my spot the simalatiys

school kit writing

we have been fulling this out in english

Amber poem

this is a poem on amber lines my class wrote  

you can have an amber coin

you can see amber in the night sky 

Amber is the jelwe of love 

amber is like the sun

the glittering amber glimmered in the sun

the sun sets a deep golden color

you cam have amber as a name

amber is the color of a sunset

amber is my favorite color

dog tag for metal work

In the last 7-8 weeks in metal work, I have been making a dog tag.
We got given a piece of metal and told to cut it to 35mm with a hacksaw (a type of saw used with cutting metal).  This was harder than it sounds. I first cut and filed it to 31mm and then had to start over. My second attempt was better [35.something].
After we had filed it and had it at the right size, we then had to round the edges and corners. Then we stamped it with an assortment of metal stamps (they have a bump the shape of a backwards letter, you rotate the stamp so it is the right way up and then you make sure it is flat, and wack it with a hammer 1 time only) and finally buffed, with a buffer wheel (a  high speed machine that spins cloth disc's so fast it will polish your work) and polished with a special aluminum polish.

clamps and files, (clamps hold your thing tightly and you use files to even out your work by getting rid of tiny bits of metal at a time)

drill press, (this is a fast spinning drill bit and it drills out a hole in the metal)

digital vernier caliper, (used to meager things to two decimal places in mm)

stamps, (used to make a indented letter in your work)

ruler, square and scriber, (ruler to roughly measure your work and make the line straight square, used to make sure your line is 90o and scriber to scratch a line into the metal)

soft jaws, (so your work does not get jaw marks embedded in it)

buffer wheel, (used to make your work all shiny by applying polish at high speed 

My dog tag has MAC on it as those are my initials. Here is the 7-8 weeks of work.

please don't mind the scratches, Mr Rees said it was fine.

What would you put on yours?

My family crest/coat of arms

In social studies we have been learning about family crests and Coats of Arms because we have been learning about Identity. We then had to make one our self. Here is mine.

This is my actual coat of arms. Or my take on it. 

This is the logos or something that represents the Sander Sides that my sister and l like (love).

This is the clock on the hill in Alexander where we go camping.

This is rose, wood from a book series the Rosewood Chronicles Undercover Princess. The red is the color of Conch house the yellow, Stratus house and purple, Ivy house 

This is my faith in God. here is a cross with blood on it as that is where Jesus died. The black is all the sin and the gold is the light He shares 

The Five Hearts are because I have 5 people in my family. Mum Dad Rosa James and me

This is our last name in a banner that I thought looked cool

what is a coat of arms 

the distinctive heraldic bearings or shield of a person, family, corporation, or country

why do we have them 

to show we are a part of that family 

why are they important

because in the olden days you would have them on a knights shield and then pass it down the line 

what did I include in mine and why

see above 

I have learnt that the crest was used on a knight's shield and sometimes it would be passed down and then it would be a family crest. 

I learned that Family crests are important because it shows you belong to that family/clan.