Here are a couple of review videos to help you review concepts we learned in our cells unit. If you are watching these, that means you scored above 80% on our cells test yesterday. So. . .CONGRATULATIONS!!! :) Way to go!!!
Standard 3 Review
If the emaze link above is being slow, you may also use the Prezi below to correct your review. Either one will be great! :)
Good luck! Have fun learning!!!
PS- If you were absent today, we also did an Around the Room Cells Review. You can do it at home. Just write your answers on lined paper, correct them, and then hand them in tomorrow with your Cells Review.
Use this answer key AFTER you have completed the answers for the Around the Room Cells Review.
We are going to be BUSY this week in science! Next week is our Standard 3 Cells Test, and I am not going to lie, it is not an easy test. In order to be prepared, you will need to make sure that you listen in class and complete ALL of your assignments. You are also going to want to take some time to study for this test.
In order to help you stay on track and not get behind this week, I have made a Science Assignment Tracker for you to check off the assignments as you complete them.
On the back of the tracker, you will notice that there is a crossword puzzle. The crossword puzzle is NOT required, but can be completed for extra credit :) :) :)
Today you will also need to log onto UTIPS and take the Body Systems Quiz.
Here are some "Hints and Helps" to help you on our quiz tomorrow. Just go through them and make sure you know the answers. You don't need to hand them in, just review any of the questions you may not remember.
Good luck and have FUN learning!!! :)
1. What instrument is best for viewing cells and cell parts?
2. What is a cell?
3. Cells perform the basic functions of _____________________.
4. What organelle controls cell functions and acts like the brain of a cell?
5. What is the substance that holds organelles in place inside a cell?
6. Which part of the cell contains genetic information?
7. What are the food-making structures in plant cells?
8. Which cell organelle do ALL cells have that controls the movement of materials into and out of the cell?
9. Which organelles would you expect a plant cell to have, but not an animal cell?
10. Sketch the shape of a plant cell.
11. Sketch the shape of an animal cell.
12. What is the function of the chloroplast in a plant cell?
13. What is the difference between a cell wall and a cell membrane?
14. What is the process by which water moves across a cell membrane?
15. A cell is placed into pure water. What will happen to its size?
16. Why does sugar stay inside a cell? (Think about why the tea leaves stayed inside the teabag)
17. Why does osmosis occur? (Think about Earth's structure and gravity)
18. How do cells get energy from food?
19. What do cells do with waste products?
20. Why are only plant cells able to produce food from sunlight?
21. What guides all cell processes? In other words, what organelle is like the brain of a cell?
22. What is the difference between diffusion and osmosis?
If the video links above don't work on your iPads CLICK HERE for Plant Cells and CLICK HERE for animal cells. :)
After watching the two videos, use your notes to complete the Venn Diagram about plant and animal cells.
Write a complete paragraph about the similarities and differences between plant and animal cells. Use your video notes and your Venn Diagram to help you with your paragraph. You can write your paragraph on lined paper, or share it with me on Google Docs.
You will be graded on your notes, your Venn Diagram, and your paragraph.
If you were absent on Friday (Halloween) you can find a printable copy of what we did in class by CLICKING HERE. Complete the questions and turn them in on Monday :)
We also have a review packet that is due on Monday. You can find a copy of it HERE.
Don't forget to take advantage of the UTIPS Practice Test. You can take it multiple times. It will help you to prepare for the test IF you take the time to figure out the answers to the questions you miss. Login: lunch # Password: Last name with a capital letter.
Also, last but not least. . .you can study your notes, your textbook, and the information here on the class website to help prepare you for your test.
80% or higher is the goal for the solar tube and canister rocket activities. GOOD LUCK!!!
Here is today's in-class assignment. Do each of the following in the order listed below.
Good luck and happy learning! :)
1. Watch the video below about the Billion Dollar Drill
2. Write a COMPLETE paragraph on lined paper about what you think they might find if they successfully drill to the mantle. Do you think that scientists current theories will be proven right or wrong? Why? Explain with details. (You can write it on lined paper, or type it and share it with me on Google Drive).
3. Complete the density sorting worksheet. Make sure and glue the sediments in order on the bottom of the paper.
4. Complete the Earth's Layers page. Make sure and add all of the written information to yours so it looks like the one HERE. When you are done labeling it, color the layers. Do your best work.
5. Hand in your paragraph (or share it on Google Drive) and the density sorting/earth's layers worksheet.
6. Check PowerSchool to see if you have any missing assignments.
7. Work on missing assignments. The end of the trimester is NEXT WEEK!!!
8. When you are finished with today's work and any missing work, you may do any of the following: read quietly, explore the class website, do extra credit.
Here is the recipe for the ice cream we made in class on Friday :)
Legend has it that the Roman emperor, Nero, is credited as the first person to make ice cream. Nero commanded slaves to bring snow down from the mountains, which was then used to freeze the flavored cream mixture. The secret was to lower the freezing point of ice in order to freeze the cream. How? The scientific secret is salt! Here’s a scientific recipe that you can use at home to make your own ice cream.
Large (1 gallon) plastic jar (a coffee can works, too)
2 quart-size zipper-lock bags
Half & Half or Milk
Crushed ice (or snow in the winter!)
Towel (or winter gloves)
Fill the plastic jar about half full with crushed ice.
Add about 6 tablespoons of rock salt to the ice. Seal the plastic jar and shake the ice and salt for about five minutes. You’ll need to wear your gloves when you’re handling the jar. If you’re curious as to why you have to wear gloves, measure the temperature of the mixture with a thermometer. The rock salt and ice mixture gets down to about 14 degrees F (-10 degrees C)!
Use one quart-size zipper-lock bag to mix the following ingredients:
1/2 cup of Half & Half
1 tablespoon sugar
1/2 teaspoon vanilla extract
Seal tightly, allowing as little air to remain in the bag as possible. Too much air left inside may force the bag open during shaking.
Place this bag inside the other quart-size bag, again leaving as little air inside as possible and sealing well. By double-bagging, the risk of salt and ice leaking into the ice cream is minimized.
Place the two bags inside the jar with the ice and seal the bag. Wrap the bag in the towel or put your gloves on. Shake, rock, roll, and mix that can! Your ice cream should be ready after about 15-20 minutes.
Once mixed, remove the inner bags from the jar and rinse them well with water. You don’t want any salt water accidentally getting into your ice cream.
HOW DOES IT WORK?
What does the salt do?
Just like we use salt on icy roads in the winter, salt mixed with ice in this case also causes the ice to melt. When salt comes into contact with ice, the freezing point of the ice is lowered. The lowering of the freezing point depends on the amount of salt added. The more salt added, the lower the temperature will be before the salt-water solution freezes. For example, water will normally freeze at 32 degrees F. A 10% salt solution freezes at 20 degrees F, and a 20% solution freezes at 2 degrees F. When salt is added to the ice (or snow), some of the ice melts because the freezing point is lowered. Always remember that heat must be absorbed by the ice for it to melt. The heat that causes the melting comes from the surroundings (the warmer cream mixture). By lowering the temperature at which ice is frozen, you were able to create an environment in which the cream mixture could freeze at a temperature below 32 degrees F into ice cream.
Did You Know? In 1846, Nancy Johnson invented the hand-cranked ice cream churn and ice cream surged in popularity. Then, in 1904, ice cream cones were invented at the St. Louis World Exposition. An ice cream vendor ran out of dishes and improvised by rolling up some waffles to make cones.
- See more at: http://www.stevespanglerscience.com/lab/experiments/homemade-ice-cream-sick-science#sthash.EOpBQHSW.dpuf
Today in class we learned about compounds and molecules. We also discussed the size of atoms compared to the size of molecules. Which one is bigger???
If you were absent today, here is some information to help you. If you weren't absent, this information will still help you study for the test that is coming up in a few weeks :)
What is an atom? CLICK HERE to find out.
What is a molecule? CLICK HERE to find out.
Read more about compounds and molecules HERE.
Use the information on the links above to fill in the information in your blue Atoms and Molecules book that is in your Matter File Folder.
Don't have your Atoms and Molecules book? CLICK HERE to print out a new one.
After we finished the Atoms and Molecules book, we did a lab activity where we made molecules. You can CLICK HERE for a copy of the worksheet we used to make our molecules. We will correct it after Bell Work tomorrow :)
Today in class we learned about the Atomic Theory and how in the world we know that atoms even exist. It was fun learning about the different scientific discoveries and how each of the different theories built on the previous theories.
Will the current electron cloud theory that we have today remain? Who knows! Maybe YOU will be the next scientist to discover something new and unique about atoms! :)
Here are the videos from the Atomic Theory that were on the presentation from class today. If you have time to watch them, DO IT. You'll be glad you did! :)
Don't forget your Vocabulary Quest 1.1 is due tomorrow. We worked on it in class yesterday and for a few minutes today. You also had last night and tonight to get it done, so hopefully you have it ready to hand in tomorrow at the beginning of class.
We have made it to Thursday, and so far we have had an amazing first week of school. Thank you to all of you for working hard, following class procedures, and just being spectacular!
Just a few reminders. . .
If you did not finish your Scientific Method WebQuest in class, you will need to finish it up for homework. It is due on Monday August 18th. If you already finished it and turned it in, HOORAY! :)
Tomorrow (Friday August 15) your Science Disclosure is due. Make sure you bring it in and put it in the "In Box" so you can get your effort points.
Also, make sure you have your 1 inch binder and five dividers by Monday August 18th. We will be putting them together and labeling them in class. If you are unable to get the binder, please let me know and we will work something out.
Last, but not least, remember that you will get extra credit points if your parents do the Million Words or Less letter. They can email it to me, or write it up and send it with you to class.
I think that's it! Tomorrow is FRIDAY! Here's to a GREAT weekend :)
I am so excited to welcome you back to school for the 2014-2015 school year! I am looking forward to getting to know each of you as we learn about science together.
This blog will be used all school year for posting all your projects, vocabulary, webquests, video links, assignment links, etc. Make sure and visit the website often! It will be a great resource for you in science this year.
What happens when you combine baking soda and vinegar???
Although fun to watch, the fizz you observe when baking soda and vinegar are put together, actually has some cool science behind it! In the world of chemistry, baking soda is called sodium bicarbonate and vinegar is known as acetic acid. Read the information below and then watch the videos to find out more! Have fun learning :)
You and your partners are going to create an iMovie about a concept from the 8th grade science core. This project will give you a head start on concepts you will learn next year in Science.
Choose any of the I Can Statements from 8th grade to base your movie on. You will only use ONE "I Can" statement for your movie. You need to make sure your movie makes sense and has a beginning, middle, and end, etc. Also, make sure you follow the requirements listed on the grading rubric.
Ever wonder where Silly Putty came from??? Inquiring minds want to know! :)
The history of Silly Putty is quite amusing. In 1943 James Wright, an engineer, was attempting to create a synthetic rubber. He was unable to achieve the properties he was looking for and put his creation (later to be called Silly Putty) on the shelf as a failure. A few years later, a salesman for the Dow Corning Corporation was using the putty to entertain some customers. One of his customers became intrigued with the putty and saw that it had potential as a new toy. In 1957, after being endorsed on the "Howdy Doody Show", Silly Putty became a toy fad. Recently new uses such as a grip strengthener and as an art medium have been developed. Silly Putty even went into space on the Apollo 8 mission. The polymers in Silly Putty have covalent bonds within the molecules, but hydrogen bonds between the molecules. The hydrogen bonds are easily broken. When small amounts of stress are slowly applied to the putty, only a few bonds are broken and the putty "flows." When larger amounts of stress are applied quickly, there are many hydrogen bonds that break, causing the putty to break or tear.
Now for a little research: (answer these on the backside of your Weird Science paper)
Today in class we watched a CRaZy video about a guy who wanted to learn a little more about impact. In order to do this he had to use Newton's Second Law of Motion. We also learned that this law has to do with the MASS and DENSITY of objects.
Hey! We know about mass and density! :) Mass is a measure of how much matter is in an object and the density is how much mass a material has in a given volume. Just in case you forgot, volume is how much space something take up. See how smart you are??? ;)
Want to know a little bit more about Newton's Second Law of Motion? Here is a little video to help you out.
Famous actor J.C. Cramwood has hired an equally famous sculptor to make a beautiful plaque of him. At the unveiling of the plaque, a horrible accident occurs! Watch and find out what all of this has to do with particles in motion! :)
Don't forget to fill out the video response sheet that goes along with the video. Good luck and have fun learning!!!
The end of the school year is quickly approaching and before I know it all of my students will be gone and moving on to the middle school. Kind of crazy to think about!
We have covered five standards in Science 7 this year. It is a lot of information and we have done many activities throughout the year to try and make sure that the students have learned all they need to, not only to be successful on the test, but to be successful next year in 8th grade science.
Next week we will start reviewing for our new SAGE testing. Throughout the year students have measured their progress in science by looking at "I Can" statements and deciding whether or not they have learned the information and then providing evidence to show they have learned the information.
Part of the review will be going through the "I Can" statements and seeing what the students remember and deciding from there what we need to review.
A copy of the "I Can" review can be found by CLICKING HERE. We will work on them in class the next few days and then start our review on Monday.
Today in class we reviewed mimicry and camouflage in animals. Then each student got to color a moth and try to camouflage it in the classroom. We had 3 "birds" come in and see how many moths they could find and eat. The moth survivors were given a prize :)
I was impressed with some of the camouflaging techniques that were used. It was a great activity and the students were able to see how camouflaging helps animals to survive.
If you were absent and you want to try a Peppered Moth activity at home, CLICK HERE to link over to a lesson you could try. It's not the same one we did in class, but it looks like it might be kind of fun!
Also, below are some Peppered Moth videos that we watched that were kind of interesting.
Should we use animals to help find a cure for cancer? Watch the video and fill out the video response sheet. Make sure your answers are complete and that your paragraph gives valid reasons that support your opinion.
If the video won't play on the iPad, try CLICKING HERE to link over to the CBS website. :)
Here is everything you need to complete your Standard 4.2 Class Notes. Remember, the videos are linked BELOW the slides for the notes. You cannot link to the videos by clicking the links in the slide show. Good luck and have fun learning!!! :)
After the video we read an article about butterflies called: A Leaf or Alive and answered the reading comprehension questions. Make sure your answers on the writing portions are complete answers (3-5 sentences each). These are due at the beginning of class tomorrow.
Wood frogs freeze solid in winter then thaw back to life and mate in the spring. How do they do it? Scientists have now figured out how to recreate this extraordinary process of cryopreservation with mammalian organs. To date they have successfully frozen, thawed, and transplanted rat livers and pig hearts. Their dream? Enhanced preservation of human organs for transplant.
After we finished our 4.1 Genetics Booklets (see post below this one) we watched Bill Nye Genetics. It has some GREAT information about genes and DNA and all kinds of good stuff you will need to know for your test.
For those of you who were absent, make sure you finish your Genetics Booklet and take the 4.1 Quiz (it is posted on a link in the booklet post). Also, watch the Bill Nye Genetics video and fill out your video response sheet.