During this week (22-26 Feb), we started the class on Monday by continuing to work on terrarium. This will apply for the whole week. I brought the plastic and cover the top surface of the terrarium with it. Then, I brought more napier grass because some of it withered and I want to change it into a new one. I also put some crickets to test if they will survive and if they will eat the nut grass or not. On Tuesday, I brought more napier grass because some of it withered and I want to change it into a new one. I also brought more crickets to the terrarium. I also plan to bring the frog and large wood piece for the decoration next Monday.
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During this week (15-19 Feb), we started the class on Monday by continuing to work on terrarium. This will apply for the whole week. I change the withered purslane in the terrarium into a new one. I realized that moss is starting to grow on the rocks so I guess I don’t really have to bring moss since it just came naturally. We water the plant to make sure it stays alive. On Tuesday, I brought the purslane and plant it on the corner side of the terrarium. I want to test if the plant will wither or not, by deciding on the number of water and sunlight it gets. I also add more grass since I didn’t brought enough yesterday. On Friday, I brought more purslane because the purslane that I brought yesterday is not enough. But the purslane that we’ve planted kind of withered a bit. We wonder if it lacks of sunlight due to the rainy weather in Jakarta. We want to make sure that water cycle happens in the terrarium so we will cover the top with plastic so that the water will not go anywhere and stay in a terrarium. This week (9-12 Feb) we started from Tuesday by conducting another mini lesson about biogeochemical cycles, which is a process where molecules are passed around again and again within the biosphere. Water cycle is important since most organism is made mostly of water. Water goes to the atmosphere through evaporation and transpiration, then return to the earth through precipitation. Carbon in the Carbon cycle come from volcanic activity, human activity, cellular respiration and decomposition of organisms, it is important since carbon is the building block of cell. Nitrogen cycle is also another important biogeochemical cycles since it makes DNA and RNA in organisms. Another biogeochemical cycle that is important is phosphorus cycle since it also makes DNA, RNA and transfers ATP for cellular respiration. Unlike the other cycles, phosphorus cycle happens on the earth only, not on the atmosphere. On Friday, we continue making our group terrarium. I brought more purslane and nut grass to plant in the terrarium. The grass in our terrarium died because we didn’t put it in a place where there is sunlight and it lacks of water. So we take out the withered grass and will change it into a new grass next week. We also make strategy on how to make the plant in our terrarium get enough water and light so that it won't wither. This week (1-5 Feb), we started the class on Monday by starting to make the terrarium for the group project. My group only brought rocks and soil since we wanted to experiment if the rocks are strong enough to hold the soil from going landslide. It turns out that the rocks is strong enough but we decided to use impraboard instead as a border between the soil and water just in case. On Tuesday, instead of continuing the terrarium making, we conduct a mini lesson about the kingdom Fungi instead. Fungus are composed of strings called hyphae combining together called mycelium. They are heterotrophic since they cannot do photosynthesis. Fungus reproduce both sexually and asexually. They use spores to reproduce asexually. Fungi are divided into four main groups: chytridiomycota, basidiomycota, zygomycota and ascomycota. Fungi also have positive benefits to humans such as for medicine, food and decomposers with also negative effects such as the destruction of food and also pathogenic to humans, plants and animals. On Friday, we continue the terrarium making for the group project. This time, I’ve brought our terrarium along with the soils surfaces and rocks already put on it. We tested if the soil is strong enough not to go landslide and if the water will be absorbed too much by the soil or not. It turns out that after some absorbing, the water level stopped going down, which means it works. Then, we planted the napier grass and purslane on the land surface in the terrarium. |
AuthorName: Astrida Nayla Archives
April 2016
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