A Christmas carol

So exited going tomorrow night 

Hope everyone has a great christmas 

And a happy new year 🎄🎉

Merry Christmas

Types of Reactions

 Synthesis; A+B=AB
element and an Element combine to form another substances
Element + Element=Compound

 Decomposition; AB=A+B
on substance breaks down into two or more simpler substances.
Compound=Element+Element

 Single-Displacement; A+BY=AY+B
Occurs when one element replaces another element in a compound
Element+Compound=Compound

 Double-Displacement= AY+BX=BX+BY
Two diffrent atoms in two diffrent compounds exchange places
Compound+Compound=Compound

 Combustion= The products of combustion are always water and carbon dioxide
Hydrocarbon+Oxygen= Water+Carbon Dioxide

Single-Displacement reacts to Zinc it creats bubbles and loud bombing sounds

Periodic Table

In class we learned about the periodic table and this is what I leaned, 

Organization of table 

• Yellow is most reactive metals 
• react in  water to release H2 gas

•  valence electrons in the outermost energy level groups. 
• elements in any group of the periodic table have similar physical and chemical properties. 
• the group provides information about the number of valence electrons. 
• Halogens are the right side of the chart are non metals they easily combine with other metals.
• Alkinal Metals are on the left side and are metals they react in water and can not be mixed   

 Parts of table

The rows on a periodic table are called periods going horizontal 

the vertical column are named  families.

Trends 

• Radius gets larger . left to right 

• The peaks of the chart are the most reactive metals 

Flame Test Lab Questions

Brianna Heaphy 

Pentucket High School

October 25,2013 

1. Errors that can appear well using the flame test. Scientist could mistakenly read the name of the chemical wrong and say the wrong colors. 

2. You need more than one property to find the answer to a substance.

3. the colors in the flames are produced from the type of substance if the substance is a high the color will be blue, red etc. if the substance slow then the color will be yellow, orange.

4. Mn, Sr, Cn, Co, Mg, Ba, Li

5. The element has to be heated by the flame before it can show color because the heat gives the element power and makes the electrons exited making them jumpy which creates light.

Law Of conservation of Mass

 Law Of Conservation Of Mass
Brianna Pentucket High School
  October 18, 2013

Where do elements come from

Brianna
Pentucket High School
October 7, 2013



Where do elements come from?

Where did all the elements of the universe come from?
* Hydrogen, oxygen, and Helium
* They come from stars that explode. Combinations of the stars gasses created elements.

How did the universe form?

* Around all young suns, young stars, all combine, swirl around, the energy of the stars stirs them around, they first form particles, then that forms snowflakes, that formed little dust pieces which then forms rocks, which forms asteroids then eventually the asteroids turned into planets and moons.

How do I know/understand matter and what I know/understand about matter?

* Because earth is made from lava rock, magma and lots of elements such as hydrogen, oxygen, and H2O. Matter occupies space it’s a combination of mass and an object that takes up space.

Scientific Observations

Brianna
Pentucket High School
September 25,2013

 

SCIENTIFIC OBSERVATIONS

SKILLS LAB 1

 

 

OBSERVATIONS                                                                    

• Solid
• Green/blue color
• Fragile  
• Thick Bottle
• Dangourous
• thin
• looks like crystals
• small
• soft
• clumpy
• turned green
• the chemical sunk
• some of it was floating
• turned a light blue when it was stired
• turned black when tin foil was added to it
• fizzled
• bubbles rose
• tin foil turned red in cooper chloride
• peices of thetin foil came off
• tin foil fuzzzed
• breackable
• flexible
• cooper chloride turned gray

Water temp before cooper chloride was added: 20 degrees

 

 

The cooper chloride stayed over nite and went back to a blue color beacause the tin foil desinagrated.

 

The tin foil disappered and now on the bottom in the beacker it looks like sand (tin foil) copper seperated from the chlorine. The bootom is a brown, blue, and  also teh color purpleis on the bottom.

 

The chlorine then went through the paper and the sand did not it stuck to the paper. And it turned purple and hardened to the paper.

 

When we put the other chemical in with the sand and chlorine after seperating them.The cooper cloride turned white then blue then green. The sand seemed to fizzle to the top in little air bubbles. Like when you put eater egg colorings into water and tehy fizzele is disinagrat.



Oreo Cookie Lab

Oreo Cookie Lab
Brianna ,Pentucket HS
September 16, 2013

1. We measured Oreo fillings of different cookies. (regular, double-stuf, and mega-stuf) to determine if the filling amounts matched advertising. 
2. Hypothesis = I think that the fluff will be doubled because from looking at the cookie it looks like there is more stuffing in it.

Steps

• Take the top off the cookie
• Weigh the top (regular)
• Weigh the regular cookie all together
• Subtract the top weight (*2)  from fluff
• Take original Weight from bottom/top of cookie and subtract it

Original
2.2

Double- Stuf
5.2

Mega- Stuf
8.25

Conclusion/Analysis
We concluded that there is more than half fillings of fluf in the oreos.

What I learned about density

 What I learned about density is,
that even the heaviest object can float if the density is lower than one. In a experiment we did we mesured if a bowling ball would sink or float one floated and the others sank because there density was higher than water. When we did the gummy bear lab we were seeing what would happen if we left them in water over night they sank because the density was higher tahn one.

Why did I take Phyical Science

Brianna Heaphy

September 6, 2013

Why did you want to take this course?

To learn about more of the ocean like water and the sounds on the ocean. And to try something new and change from Biology I feel this will be different.

What do you hope to gain from the course?

A better understanding of life, and environment around us. And to pass the class and try and not fail any tests.

Physical Science is important because everyone lives science everyday. Its important because without it our food and drinks would not be edible or drinkable. Science helps us learn about our world and our animals, environment and our plants. We would never know what we know today without it.