weekly math post #1

Prime factorization

To find the prime factor you can either use division or a factor tree with division you divide the number by what even the easiest number is and you keep dividing till you get to one then you take all the numbers you divided by and turn them into prime numbers if there not already then you have the prime numbers of that number. For a factor tree you need to get two numbers that multiply to make that number then do that to those numbers till you have all prime numbers.

Weekly Math Post #2

Negative exponents

To solve a negative exponent you need to either find out what the answer would be if it was a positive exponent then make it one over that number an example of this is 5 to the power of negative 3 since 5 to the power of positive 3 is 125 the 5 to the power on negative 3 will be 1 over 125. Or you can get rid of the exponent by tuning it into a fraction and putting it on the opposite side that it was on (if it was negative on the bottom you move it to the top and then the exponent will become a positive)

 

Science 10 Astronomy Wonder Project

My question is: What would the effects be on earth if a nearby star went supernova? 

According to the articles I read it would depend on how far away the supernova occurs.  So far many have been detected but they have all been to far away to harm the earth.

A star would need to be closer to earth than about 50 to 100 light years distance for it to have an effect on us. It would not destroy the earth, but could (potentially) heat the side of the earth being hit by the radiation to temperatures high enough to destroy life, boil away water and, if strong enough, it could potentially destabilize earth’s orbit.

There is another star that is 150 light years away from the Earth called IK Pegasi B and it has a chance of going supernova anytime in the next 10 million years.

If a supernova from 33 light years hits earth every 240 million years, gamma rays would be responsible for most of the effects on earth like introducing a chemical reaction in the upper atmosphere, depleting the ozone layer to the point that it could expose the surface to harmful solar and cosmic radiation.

Would we know it was coming? The answer is yes!  When the radiation from the explosion begins to interact with the earth’s atmosphere the effects would become visible to humans.  At their brightest, supernova can outshine an entire galaxy.  At least we’ll see the shock coming before it happens.  It’s what happens after that is scary!

 

 

https://www.quora.com/If-a-supernova-hit-Earth-what-would-the-stages-of-its-impact-be-and-would-we-be-able-to-see-the-supernova-getting-closer-and-closer-or-would-we-be-dead-by-then

Additional Sources:

https://en.wikipedia.org/wiki/Near-Earth_supernova

https://www.newscientist.com/article/dn2311-supernova-poised-to-go-off-near-earth/

 

My Opinion

For the IK Pegasi B star I think that it will go supernova but thankfully not for a long time.  Since it’s expected to not happen for 10 million years I don’t think that I will ever experience a supernova in my lifetime.  A gamma-ray burst could affect Earth in much the same way as a supernova but again astronauts seem fairly certain it won’t happen for many years.

 

Reflection 

For this assignment I worked on developing my thinking competency.  I read many articles and thought deeply about the information before writing about my answer to the question for this assignment.  I also thought deeply about my question for this blog.  Also I worked on developing my researching skills.  It’s difficult to find articles that you can trust the information and I looked for many articles that I thought had credible information.

Title: Everything I know about polynomials

Create a pictorial representation (algebra tiles) for a given polynomial
• Identify the variables, degree, number of terms, coefficient and constant term of a given simplified polynomial
expression

Model addition/subtraction of two given polynomial expressions algebraically and using algebra tiles

Model multiplication of a polynomial expression by a monomial algebraically and using algebra tiles

Model division of a polynomial expression by a monomial algebraically and using algebra tiles

This semester I feel the strength that I have demonstrated is critical thinking in math by making questions about the polynomials and solving those questions by drawing out algebra tiles.  I had to think deeply about what equation to make before solving them.   I demonstrated growth in the thinking competency because before this semester I didn’t even know what a polynomial was but now I feel better about them, except for the big ones that have lots of brackets.

Egg lab

 

1. https://www.eggs.ca/recipes/mini-ham-and-cheddar-frittatas

2. https://www.eggs.ca/eggs101/view/12/how-to-make-a-frittata?gclid=CjwKCAjwmqHPBRBQEiwAOvbR8z7evr_uIDcX1jq9a89kHyeIvzp9-zCxQLm8bTqqUx9R5BVCwDXYLRoCQx0QAvD_BwE

3. Egg omelette

Ingredients

2-3 eggs
A good non-stick pan
1 tsp water or milk
Butter, vegetable oil or cooking spray
Desired fillings (e.g. cheese, mushrooms, green peppers)
A spatula

Recipe

The first step in making an omelette is deciding on and properly preparing the filling. It’s important that whatever you’re filling your omelette with is already cooked if necessary, as it will not have time to cook in the pan. It’s also important to make sure that your ingredients are not going to give off a lot of water when warmed – wet ingredients like tomatoes can create a watery, unpleasant filling.

Whisk the eggs with a teaspoon of milk, season with salt and pepper. Be sure to incorporate the yolk and the white together well.

Coat a pan with butter or cooking spray and heat over medium-high heat. Once the pan is hot, pour in the mixture and use your spatula to gently move cooked egg in from the edge of the pan to the centre, creating “curds.” Tilt and rotate pan to make sure that any uncooked egg fills in any empty spaces.

When the surface of the egg is looks moist, but does not jiggle when the pan is shaken, it’s ready for filing. Add your filling sparingly – a little goes a long way. Fold the omelette in half with a spatula and let the bottom brown slightly.

Use your spatula to flip the remainder out onto the plate, and if you have any left over filling, pour the rest on top of the omelette.

The egg omelette was pretty easy to make the hardest part is flipping it I put to much stuff in it and when I flipped it it broke in the middle so when in put it on the plate I flipped it so you can’t see the hole. I picked the omelette over the other ones because the mini ham and cheddar frittatas looked to easy and small and I didn’t have all of the stuff to make the regular frittatas and I like egg omelette’s.

These are the ingredients

I am pouring the egg in to the pan

I am moving the spatula around the edges so the egg won’t get stuck

I put the ham and cheese in

I am flipping it

that is the link to my nutrient web