05.25.09
Tuesday May 26th Class Plans
Hello seventh and eighth graders,
It is Monday night and both Joey and I are running fevers. Given the high likely-hood that I will not be in tomorrow, I am posting class assignments on the website. I hope to be there tomorrow but please post any questions or comments to the blogs if you have them. I will check from home periodically.
-Mr. K
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- Review the Exam Outline that is posted on the website. If you have any questions, post them to the blog.
- In the groups I assign, complete Topic Review Word Doc.
- In the same groups, post a short blurb (about 5 sentences) to the EXAM SUMMARIES post on my website. Your post should include a short summary of concepts, key terms, BFFs, and any applications for the information.
- Check GradeSpeed to make sure that all of your grades are in order. Do not post grade issues to the blogs, email me at ckremer@sles-sa.org
- Write sample test questions and post them to the blog.
May 26, 2009 at 9:04 am
Questions you could ask:
- What group is neon in?
- Make an electron dot diagram for boron.
- What group is calcium in?
- List 5 groups
- Label the atomic number, mass and symbol.
- How do you tell if an element is a liquid, gas, solid, or synthetic?
olivia emma and andye
May 26, 2009 at 11:15 am
Summary
The central nervous system consists of the brain and spinal cord. It makes descisions on how to react to stimuli.
Key Terms
1. spinal cord- the long band of nerves that runs through the back to the brain.
2. cerebrum- the part of the brain that thinks and makes
3. cerebellum-the part of the brain that controls coordination and muscle movement
4. interneurons-neurons that are in the brain and spinal cord that control responses to stimuli
Applications
Wear a helmet when bicycling and a seatbelt.
May 26, 2009 at 11:16 am
This is our blurb about the three different kinds of neurons.
There are three kinds of neurons; they are interneurons, sensory neurons, and motor neurons. Together they make up a chain of nerve cells. The sensory neurons pick up the internal or external stimuli and convert them into a nerve impulse. The interneurons are the neurons that carry the nerve impulses from one neuron to another. The motor neuron sends the impulse to a muscle an the muscle contracts in response to the impulse.
THANKS!!
~ Natalie and Matthew
May 26, 2009 at 11:18 am
Questions that might be asked about the Central Nervous system
1. What are the two main organs of the Central Nervous System?
2. Name the 3 main sections of the brain.
3. List their functions.
4. What other system is the Central Nervous system connected to?
5. Where are the inter neurons located?
May 26, 2009 at 11:43 am
Henry and Jacob said,
May 26, 2009 at 11:15 am
Summary
The central nervous system consists of the brain and spinal cord. It makes descisions on how to react to stimuli.
Key Terms
1. spinal cord- the long band of nerves that runs through the back to the brain.
2. cerebrum- the part of the brain that thinks and makes
3. cerebellum-the part of the brain that controls coordination and muscle movement
4. interneurons-neurons that are in the brain and spinal cord that control responses to stimuli
Applications
Wear a helmet when bicycling and a seatbelt.
May 26, 2009 at 7:20 pm
Cobfysed on what you mean by energy power and usage.
Brock
May 26, 2009 at 7:28 pm
Confused on what you mean by energy power and usage.
Brock
May 26, 2009 at 8:11 pm
I am cobyfused about your comment!
We will work some in class tomorrow. If you look back through the archive, there is a post about them.
-Mr. K
May 26, 2009 at 8:34 pm
Mr. K,
Are there any short answer questions on the test?
Lauren
May 26, 2009 at 9:02 pm
Mr. K,
What did you mean by building simple circuits?
Lauren
May 26, 2009 at 9:13 pm
Mr. Kremer,
On our study guide, under the Heredity and Genetics section, you mention the Structure of DNA and Chromosomes. What do you mean by this? Are you referencing the base pairs-Adenine, Guanine, Cytosine, and Thymine?
Thanks,
Jake
May 26, 2009 at 9:14 pm
Lauren,
There will be no short answer/essays on the test.
I want you to be able to identify and explain the difference between the two types of simple circuits (series and parallel) with different power sources (battery and generator).
-Mr. K
May 26, 2009 at 9:16 pm
Jake,
You are on the right track. I want you to be able to relate the key terms to each other. Chromosome, gene, allele, base pair,…
-Mr. K
May 26, 2009 at 9:25 pm
Sorry Mr. K,
I know the difference between simple and parallel, but what do you mean by with different power sources. Are you just talking about comparing the two, battery and generator?
May 26, 2009 at 9:35 pm
Lauren,
What it would look like. Why you would choose each. That generators tend to generate larger voltages…
May 26, 2009 at 9:59 pm
Ok thanks Mr. K. I probably will ask you again tomorrow, but thanks. I hope you and Joey are feeling better.
May 27, 2009 at 2:33 pm
Chemical Reaction: is a change in which one or more substances are converted into substances.
Reactants: the substances that react.
Product: the new substances that are produced.
→ : Yields or produces
EX: Reactants → Products
Conservation of Mass: The law that tells that the mass of the product always equals the mass of the reactant.
• Lavoisier’s was a French scientist, who discovered the conservation of mass, while conducting an experiment. Lavoisier took a solid piece of mercury, which was a dark reddish color, and measured it. He then placed the solid piece of mercury in a sealed container and heated it. Lavoisier found that when he heated it, the mercury turned into a silvery liquid and let out a certain gas. The sealed container trapped the gas. Lavoisier weighed the liquid and the gasses which was released and found that the liquid’s and the gas’s weight combined equaled the same as the solid mercury. He named this discovery the Law of Conservation of Mass.
Types of Chemical Reactions
• Combustion Reaction: Any reaction between O2 and a fuel that forms CO2 and water.
o EX: O + H2 → H2O
• Synthesis Reaction: Combines two or more compounds to form one compound.
o EX: A + B → AB
• Decomposition Reaction: Breaks one compound into two or more compounds.
o EX: AB → A + B
• Single Displacement Reaction: one element replaces another element in a compound.
o EX: A + BC → AC + B
• Double Displacement Reaction: the positive ion of one compound replaces the positive ion of the other to form two new compounds.
o EX: AB +CD → AD + CB
o
o
May 27, 2009 at 2:43 pm
Ionic, Covalent and Metalic bonding:
Summary:
Ionic: give and take electrons, strong strength, metal to nonmetal,forms crystals and conducts electricity in water.
Covalent: share electrons, weak strength, nonmetal to nonmetal, insulator.
Metalic: sea of electrons, strong strength, metal to metal, luster, conducts electricity and heat, matrix.
Key terms
Ionic Bonding:attraction formed between oppositely charged ions in an ionic compound.
Covalent bonding: Attraction formed between atoms when they share electrons.
metallic bonding: occurs because electrons move freely amoung a metals positively charged ions and explains properties such as ductility, and the ability to conduct electricity.
Polar: unequal share, positive and negative ends.
Nonpolar: equal share
ion:charged particle that has more or fewer electrons tha protons.
Rule of 8: when compounds form, each atom likes to make eight valence electrons.
this can be applied to anyone studying and resarching bonding
you can use your skits for memory aid.
questions mr. k might ask:
nonmetals and nonmetals attract in what kind of bonding?…….covalent
what kind of bonds form through giving and taking electrons?……..ionic
give an example of a polar bond?……carbon dioxide
May 27, 2009 at 5:23 pm
Mr K
Are we going to have to do after birth also?
May 27, 2009 at 5:33 pm
hey mr k i have been looking for a good plant and animal cell diagram is there one on the book?
May 27, 2009 at 7:38 pm
hey Mr K its Drew… i have two questions
what is a Static discharge??? and what is inert mean??? i couldnt find those key terms in the book …
thanks
May 27, 2009 at 7:50 pm
Hey, what are we supposed to study about the menstrual cycle? Do we do a timeline type thing???
May 27, 2009 at 7:52 pm
Claudia,
I don’t think there is a good diagram in the book, but we took some notes a while ago and drew diagrams ourselves. Also, you can look at the topic- review fill in that Jake and Lilly did, there is a good diagram…
Hope that helped!!
Jessica
May 27, 2009 at 9:21 pm
Mr. K,
Are we going to finish our topic summaries in class tomorrow? I hope your head feels better.
Lauren
May 27, 2009 at 10:20 pm
Mr. K,
I have two questions… You mentioned in class today that we needed to know the chemical equations that we studied this semester… What are those chemical equations??? And can you give me that letter of recommendation and a copy of this years Stanford Achievement Test to me tomorrow for the Pre-AP Biology course at Alamo Heights? Thank you! And I hope you and Joey are feeling better=)
Hannelore S.
May 28, 2009 at 10:28 am
Hey mr. Kremer,
we’re sorry you’re feeling bad! But we’re just studying in class and lucy and i were wondering that for all the key terms will there just be a huge matching section? or crossword? and also, is the only equations we’ll have to solve the enery one we practiced yesterday in class?
Thankkkssss
-Luc and liz
May 28, 2009 at 2:15 pm
Claudia,
There really arent good plant and animal cells in the book. The best to study would be the diagrams from your quiz. If I find another good one, I will post it online tonight.
-Mr. K
May 28, 2009 at 2:19 pm
Drew,
Static Discharge – the rapid jump of charge from one solid material to another due to a buildup of static electricity. (example – lightening)
Inert – non-changing or non-reactive; stable; (noble gasses)
-Mr. K
May 28, 2009 at 2:23 pm
Hanne,
I will have a copy and a letter of rec’ for you tomorrow.
As far as writing chemical compounds, I want you to be able to figure out how to balance an ionic compound using the rule of eight.
-Mr. K
May 28, 2009 at 2:25 pm
Lucy and Elisabeth,
There will be matching that is broken down into groups of words (10 or so), not one huge long list.
-Mr. K
May 28, 2009 at 4:53 pm
hey… can someone answer my question??
what are we supposed to study about the menstrual cycle? Do we do a timeline type thing???
May 28, 2009 at 6:04 pm
Jessica,
I have a study deal for the menstrual cycle. I will email it to you.
May 28, 2009 at 6:07 pm
k thanks jake!!!
May 28, 2009 at 6:28 pm
Can anyone relate the terms for structure of DNA and Chromosomes? Terms: Chromosome, gene, allele, base pair. I have a good idea, but I want to see if I am on the right track. Thanks.
May 28, 2009 at 6:39 pm
How in depth do we have to know the systems of the body? Is page 339 good enough, or do we need to know a whole lot more? I have already started filling out the topic review sheets for each system and I’m wondering if I should continue doing that. If anyone wants them, I can email it to them.
May 28, 2009 at 8:27 pm
Hope,
I think that’s good enough! you don’t need to get that in depth… p. 339 is where i studied it.
May 28, 2009 at 8:38 pm
thanks a bunch jessica!
May 28, 2009 at 8:44 pm
your welcome hopers!!!
May 28, 2009 at 9:03 pm
Ok! Thanks, Mr. K=)
May 28, 2009 at 9:19 pm
Im sorry, im sure you all ready told us, but do we need to know the difference between a wet and dry walled battery?