Category Archives: Science 9

Silvers of Silver Lab

1.Once we put the silver nitrate onto the copper I immediately saw the copper start to change and dissolve with the &silver& taking its place. Without looking in the microscope I saw &silver& appearing in the middle where the silver nitrate was more prominent, It looked very shiny and sleek. However once I looked in the microscope the &silver& did not look solid persay it almost looked furry, it ressembled alot like the branches of trees. It almost looked like the &silver& was growing branches from the middle, the middle was solid but the farther you went out the furrier it got.

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2.The shiny grey material is the &silver& that is forming while the copper is disolving. The &silver& was formed from the chemical reaction between the copper and the silver nitrate. Once the nitrate touched the copper he chemical reaction started and it started tp transforme into &silver&.

3. From my understanding I believe it turns blue because the silver nitrate was stripping (and dissolving) the copper, and sometimes when you look and metal it has a bluey look to it. So I think that it was the stripping from the copper that turned the liquid blue.

4. In my view I do not think that alchemy is real due to the fact that if it was real everyone would be rich. They would just take copper and transform it using all these different chemicals, copper would soon be exstinct and we would all have a bunch of gold and silver. Also silver is formed on its own and not in a lab, so trying to replicate silver by using multiple different materials would be impossible. Its almost like when you gain muscle naturally, you work out and gain the muscle, but when you take steroids you do gain muscle but its not the same ind of muscle and it does not grow properl.

5.The part of the Lab that I liked the most was when you could see the chemical reaction forming infront of your eyes you could see the &silver& that was forming and you could tell that the copper was dissolving. This helps my understanding for chemical reactions because it really shows me how two different types of elements (copper and silver nitrate) can combine and create a completly new element (silver).

Bag of Change

1. Chemical A was a white powdery substance, that looked like flour. Chemical B were white little balls that resembled as white nerds. And Chemical C was a blue liquid substance that looked like it was blue Koolaid.

2.Once all chemicals can touch each other he bag started to get big and blow up with air (gas), basically the liquid chemicals amd solid chemicals formed to make a gas. It then started to get very hot and turn into a foamy liquid form, that would get hotter the more you messaged it together. At this point in the experiment you can no longer see the white balls, and the white powder even the blue liquid all you can see is yellow/white foam that is very hot and that continues to let out gas the more you move it together.

3.Physical properties: white powder, white small balls, blue liquid and yellow foam.                                     Chemical properties: The solids and liquids combined to form a gas.

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DNA Bracelet

DNA caries the instructions for building proteins, proteins are made in ribosomes. In order to get the insructutions for building proteins to the ribosomes, mRNA which is a short strand of genetic information that carries the instructions from one gene on DNA, transports the instructions to the ribosomes. Once it reaches the ribosomes, the ribosomes holds onto the mRNA, reads the instructions and links together amino acid (protein building blocks).

Our bracelet was our first name spelled threw fruit loops, our whole name represented DNA and the fruit loops represented amino acids. The bracelet helped me understand the DNA to protein procedure, because if we made a mistake and put one wrong coloured fruit loop on the bracelet, put on a extra one, or forgot one then the bracelet would not spell our name. Which would also mean that the DNA would not be in the right order and the amino acids would not produce proteins properly.

The DNA bracelet overall was fun to make and did help me to understand the DNA method. I however don’t think that it needs to be improved, it was a fun and easy way to help us comprehend what we are learning.

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Mutant Bee

On the mutation A bee, the affected body part is its antennas, it has 4 antennas instead of  2.                                                                                                                On the mutation B bee, the body part that was affected was the wings, it does not have any wings.                                                                                                       On the mutation C bee, the stinger was the affected body part, it had a half stinger.

The mutation A bee is a positive mutation, because bees use their antennas for everything (touch, smell, taste), by having 2 extra antennas the bees can detect things more easily.                                                                                                                                                                                                                                        The mutation B bee is a negative mutation because bees need to fly to flowers and their hive, if they don’t have any wings then they will not be able to do these things and they will die.                                                                                                                                                                                                                                 The mutation C bee is also a negative mutation because they use their stingers as self defense, and to protect the hive. If they have a shorter stinger it will be harder to do so, I don’t think its that big of a negative mutation, but if they have a small stinger they will have a more likely chance of not being able to defend themselves when they have to.

I do think that this activity is a good way to help me understand mutations, it gives a good visual effect which helps me see the types of mutation (positive, negative, etc..). I don’t think that this activity would need much of a change at all, but the one thing that i would have liked id that each group has a piece of paper and we pass around the different bees. Then on our paper each group would write down the type of mutation and why, for each bee. I feel like this would help everyone else understand and get a better perspective.

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