THIS WEEK IN SCIENCE

This week in science we learned about the water cycle, floods, drought and the atmosphere.

The water cycle:

Water in the ocean/lake/river evaporates. Then it mixes with air particles and forms a cloud (condensate). Then the clouds presipatate and let it rain. The water goes in to rivers or large bodies of water or underground and then eventually evaporates again.

Floods:

Floods can cause distruction! There is so much water that it takes a very long time to evaporate.

Drought:

Just the opposite of flood, there isn't enough water to survive. Crops animals and even people can die.

Atmosphere:

The atmosphere protects us from harmfull sun rays like uva, uvb, x-ray and infared. The layers are filled with different ammounts of gasses.

MAKE SURE YOU CLICK THE TWO LINKS TO THE WATER CYCLE SONG ON THE LINKS BOX. THEY ARE ON YOUTUBE SO IT DOSTN'T WORK AT SCHOOL.

This week in science

This week in science we did the classification sheet. We classified pictures and organisms and we learned about Carolus Linaeus. He made groups of classifications.

Kingdom

Phylum

Class

Order

Family

Genus

Species

When we say something has a scientific name, we are talking about the last two classifications. Genus and Species.

We are caled homo sapiens. Our genus is homo and our species is sapiens.

This week in science

This week in science we discussed EVOLUTION!



We discused:

Natural selection, the process in which we adapt.

Selective breeding, changing an organizm so it is better and stronger and has a more disired trait.

Mutation, a random change in a genetic code.

we took a quiz then discused:

genetic flow- a change in a population when people move in or uot of a place.

genitic drift- whan a random change occursin a population and it wipes out a species.

This week in science

During this week, we started to learn about adaptations.

An adaptation is what a living thing and its population does to survive in an environment when it changes. For example, fish adapted over time and developed lungs so they could go on land. This was good because now life could live on land.

We did simulations so that we could understand adaptations better.

Natural Selections

I think that we should keep inventing medicine and keeping people alive because we don't want to change. We could eventually turn into something elso that is bad. There is one thing that could be bad, if something in the future happens like a medior hits earth like it did with the dinosuars, we could have developed those adaptations to survive it.

this weeks experiment

During this week, i learned how to make an experiment by making an observation. In the past experiments that i have done, i came into class wondering what something did. Now, i interacted with the cockroaches and came up with a question. I observed that they stuck to dominics hand so our group came up with the question: what can they stick to.

At camp spears, i learned about:





Bogs


Bogs are very deep watery places. The water has no oxygen so bacteria cant grow there. Bacteria decomposes things so nothing can be decomposed. Something that falls in a bog can be preserved for a very longtime. In England, they found a thousand year old man that was sacraficed and thrown in a bog. They found out all this stuff from the things in his body that were preserved.



Symbodic relationships

Symbiotic relatrionships are when a living thing uses aanother living thing to live. For example, fungus grows on alge. The fungus needs alge for nutrients to live but the alge can live on its own.

Fox dung

Kinda gross but the fox eats hairy animals and poops out hairy poop. I didnt know the hair would show up.

Archery

I learned that archery is hard when you dont do it for a while. I did archery last year or so and when i did it it was really hard. My fingers were numb when i fired the arrow too.

Pond Ecology

I liked pond ecology because it was something that i havent done before. I liked to see what was in the pond like crayfish and salamanders.

ThE WeEk Of 4/1

This week in science we finished our prodjects on reebops. We started an experiment on cockroaches and made observations about what we noticed about them.

I noticed that they have small heads, suctionlike feet, and have a hole between there shell and there belly ex:

On thursday, we had our test. I thought it was easy but it took a long time for me to finish.