Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Tuesday, March 06, 2012

Solids





Students worked on classifying, sorting, and describing solid shapes today for science. They described them by color, shape, size, texture, etc. We will be working more this week on learning specific vocabulary and concepts related to solids and liquids.

Wednesday, June 01, 2011

Charlotte

This uninvited guest spent the morning in our classroom, and was affectionately named "Charlotte" in honor of the book we were reading at the time. The girls were excited to try out their new drawing techniques, and I was just happy to get rid of the spider by the end of the day.

Friday, May 20, 2011

Ooey, Gooey, Oobleck



We made oobleck in class after we read the book by Dr. Seuss: Bartholomew and the Oobleck. It was about a king who wanted a different type of weather to come down from the sky. Oobleck came down and got stuck on everything. When the students first saw the oobleck in class, they thought it would be a liquid, but then they were surprised when they touched it and it seemed like a solid. We debated about which form of matter it really was. It is actually neither a solid or liquid but has properties from both stages of matter. Formally it is known as a non-Newtonian subtance. This means that when a small amount of force is used, it acts like a liquid, but when more force is applied, it acts like a solid.

Oobleck Recipe

2 cups of corn starch, 3 drops of green food coloring, enough water to make a thick mixture (about the texture of pancake batter) It usually takes 1 part cornstarch to .5 parts water.

Tuesday, April 19, 2011

Whirlycopters

On Monday we did a lesson in science using whirlycopters. These paper creations are similar to helicopters and the seeds that fall from the maple trees. Students loved comparing the different copters, and I hope you had fun with the three versions at home.

My goal for this lesson was to not only look at motion, but also for the students to understand variables and that scientists need to perform an experiment more than once.

Tuesday, April 12, 2011

Germ Experiment

Last week our expert, Mrs. Randle, left us some agar plates to conduct our own experiments. The students picked three places in the school to swab and see if anything grew on their plates. Here are their results.
This is the plate from the bathroom urinal handles.


This is what grew from the floor swabbing.
Here is the swabbing from the walls around the building.


The fuzzy growth is fungi, and the others are unknown at this time.

Wednesday, April 06, 2011

Germ Expert



Today Mrs. Randle came to speak to our class about germs and her job. She works in a lab at Wishard Hospital which analyzes medicines to see how effective they are against strains of germs and also tests the cultures that are sent in from your doctor's office for things like strep, etc.


She brought in some agar plates that she had set up for us yesterday. On one, she had rubbed her hand on the bottom of her shoe and then placed her dirty hand on the agar. Then she washed her hands thoroughly and placed her clean hand on the other plate. Here are the results:



This is the agar plate that had the dirty handprint. It grew lots of germs: staph, fungi, and bacteria. The thumbprint was where all of the fuzzy growth is.


This is the agar plate with the handprint after washing her hands. It did not grow anything.




Students also made observational drawings of the agar plates and also of the microscope that she brought in. It had all the same pieces and parts as the microscopes we use here in the classroom, except it was biocular and an oil immerison microscope.



Students enjoyed looking at the prepared slides that our guest speaker brought to share. She also showed us a website that had animated characters that looked like real germs. The children really enjoyed seeing them come alive.






Wednesday, March 02, 2011

Project Germs

We are entering phase two of our project about "Germs". Today the students learned about the importance of handwashing and how easily germs are spread. I had received a germ glow light kit from Mrs. Bastin that has a bottle of fake germ powder that glows under a black light. We used this kit for our exeriments today.

First I passed around "Chester the Raccoon". I had liberally sprinkled the germ powder all over him. The students noticed he was dusty, but didn't think anything about it. After they had all touched him, I shared that Chester was sick and infected. That meant he had a lot of germs on him. We used the black light to see the germs on their hands. Even one student who had barely touched Chester still had enough germs on her hands to glow.

I had the students wash their hands, but told them not to use soap or warm water. They rinsed their hands quickly and dried them with paper towels as usual. They were surprised to see that there were still germs on their hands. We discussed how to properly wash our hands and how important it is to use soap, hot water, and scrub them for an appropriate time, etc.

When we looked at their hands this time, most of them had washed off all of the germs. However we were still able to see students who had not washed their wrists or under their fingernails. The interesting part for them was realizing that even though they washed their hands free of germs, there were germs now showing up in their hair, on their clothes, and especially on their faces. This let them see how much the germs had spread over their bodies in the short time since they had been infected.

Now that the student understand how to use this kit, we will be able to have them design their own experiment to test hypotheses.

Thursday, September 02, 2010

Caterpillars

Mrs. Laudadio brought in some new critters to our classroom this week. We have quite a few caterpillars making a home here. They eat dill weed, and are getting fatter every day. One has started his pupa stage already. These caterpillars look very similar to Monarch Butterfly larvae, but they are fact another butterfly variety called an Eastern Black Swallowtail.




For more information on the species click here:






Thursday, January 21, 2010

Teeth Drawings


This week for project work we did observational drawings of our own mouths. Students used mirrors to draw their teeth as best they could. Some of them counted their teeth to make sure the correct number was included in their depictions.

Students also worked on conducting surveys within our own class and have come up with many questions they are working to answer in the coming weeks.

Monday, October 19, 2009

Butterfly Release

Today we said good-bye to our butterflies. We had 9 caterpillars spin chrysalises, and we waited patiently for them to emerge in the butterfly pavillion. Five of the butterflies were released today, but unfortunately not all of them survived. The students were very excited to crawl inside the tent with the insects. They loved seeing them up close.

We are finalizing our insect book this week and I hope to have it shipped and bound over Fall Break. I for one am glad to finally be done with all the little critters in our classroom. Thank you for your support, and for graciously sending in bugs for the last few weeks. I know the children have enjoyed this project and learned so much.

Thursday, October 01, 2009

Insect Project

We have been working hard on our insect project and learning about lots of different kinds of critters. Today the students used the paint program on the computer to draw different insects. We also took time in the afternoon to do some research and conduct surveys. They asked the other classes questions about animals that are commonly mistaken for insects like worms, spiders, etc. The they used a new program on the computer to create graphs showing their results.








Monday, September 21, 2009

Insect Expert


Today Mrs. Wright from the Indy Parks department visited our classroom to talk to the students about insects. The children have been busy finding insects almost every day and some are bringing them to school to share. Today we learned about the different body parts of insects and sang a song to help us remember and identify them. We also went outside to look for insects and found many great specimens. Some of the critters the students found were: moths, butterflies, crickets, grasshoppers, cicadas, and a roly poly. We decided the roly poly wasn't really an insect because it had more than six legs. We also learned that all bugs are insects, but not all insects are bugs.

Friday, September 04, 2009

Insects

Today we started our FOSS kits and our new unit on insects. Each student received 3-4 mealworms to keep on their table area. We will be watching to see what changes occur over the next few months. (Don't tell them if you know what's going to happen.) We made lots of observations today and noticed our mealworms have segments, six legs, and either mouthparts or antennae. We learned that they need air, water, food, and space to live. Students will be documenting their observations in their science journals as we progress through this unit.

Monday, April 27, 2009

Weather Scavenger Hunt

Today for science we went on a Weather Scavenger Hunt. We looked for items on our list such as "where rain has washed away soil" and "something that could be carried by the wind." Students are really enjoying the fact that we are able to do more lessons outside due to our lovely recent weather. I think it is supposed to rain this week though, so we may have to enjoy what we can now.

Monday, April 20, 2009

Whirlicopters

Whirlicopters are like little paper helicopters. Students made 3 different ones and we designed several experiments to test their flight patterns. We learned about variables and how important it is to be consistent. There were so many things that could impact the results of our tests. We explored the effect of various copter materials on descent time, and set up and conducted scientific tests using a control, making predictions, observing and recording tests, and drawing conclusions.

This is always one of the students' favorite activities, and I know they really enjoyed this science lesson.

Monday, April 13, 2009

Hello Red Fox

We read the Eric Carle book Hello Red Fox for our author study, and as usual the children loved it. It is a story of a birthday party that shows that things are not always what they appear to be. This book is filled with characters that change colors before your eyes--a green fox turns red, a yellow butterfly, purple, and many, many more. It uses an optical illusion phenomenon called complimentary afterimage




Here is a link that explains what is happening and why we see the opposite colors when reading the book.


Friday, March 20, 2009

Oobleck


We made oobleck in class after we read the book by Dr. Seuss: Bartholomew and the Oobleck. It was about a king who wanted a different type of weather to come down from the sky. Oobleck came down and got stuck on everything. When the students first saw the oobleck in class, they thought it would be a liquid, but then they were surprised when they touched it and it seemed like a solid. We debated about which form of matter it really was. It is actually neither a solid or liquid but has properties from both stages of matter. Formally it is known as a non-Newtonian subtance. This means that when a small amount of force is used, it acts like a liquid, but when more force is applied, it acts like a solid.



Oobleck Recipe

2 cups of corn starch, 3 drops of green food coloring, enough water to make a thick mixture (about the texture of pancake batter) I usually measure equal amounts of water and corn starch, but mix water in slowly.

Thursday, February 26, 2009

Science Fair

Congratulations to our science fair participants! They did an excellent job of researching and learning about a new topic. We were all so interested in their ideas, and the students, eagerly listened to their presentations. I am very proud of you all!

Thursday, February 12, 2009

Weekly Update

We have been learning many new things this week We read a couple books about George Washington Carver, and learned that he discovered hundreds of new uses for peanuts. He also taught farmers how to do crop rotation and that is was beneficial to their plants.

In math we have continued our practice of double digit addition with regrouping. We will be taking a test on this concept on Friday. Next week we will be starting subtraction with regrouping.

In Writing Workshop, students are working on how-to books, and writing about something they know how to do well. Some of their ideas are how to make oatmeal, how to draw a dragon, and how to build a lego plane.

Many children have moved up a level in Reading Workshop. I am excited to see their progress and that they are making good use of the reading strategies we have learned about.

In science, our amaryllis plant has grown quite a bit. Today the students measured it, and it is already 7 cm. tall.

For project we are learning about money. Students were very interested so far in how it is made, and would like to take a field trip to one of the United States Mints. I explained that they are both too far away, but they said we can just take a plane to get there. So...please let me know if you would be willing to sponsor this trip..HaHa! We will be partnering with the art teacher on an activity to print our own money, and work on other representations in the classroom.

Saturday, January 24, 2009

Amaryillis


We planted an amaryllis bulb this week that one of the students gave me as a Christmas present. It was a great science lesson as we discussed bulbs and plants. Students predicted how long it will take for the flower to bloom, and we recorded our guesses on a chart in the science center. I know the students are anxious to find out what it will look like once it matures. We will also be measuring the stem as it grows and keeping track of its progress.
 

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