A student of the 8th grade is required to design and perform an experiment in the science fair project. Read on to know some biology experiments that can be performed in 8th grade science fair projects.
In a science fair project, each of the participating students gather to demonstrate and present their works. A project can also be handled by a group of students depending on the complexity level and/or time duration, required to submit the project. Science fair projects are nothing, but applications of scientific knowledge in order to answer common queries and/or solve problems. The basic concept of a science fair project is to enhance the knowledge of the students by allowing them to create and experiment with innovative ideas, related to science.
8th Grade Science Fair Projects
To start a project, you can think of interesting topics (may be related to your theory class) and note them down as statements (hypothesis). Then, you can plan the experiment, keeping in mind the requirements and procedure to be followed for that particular project. Once you are sure about the project planning, perform the experiment and draw out the possible observations. This way, based on the observations and results, you can prepare the project conclusion. By this time, you can decide whether your hypothesis statement was true or not. Following is a list of 8th grade biology experiments that can be performed in science fair projects.
Study of Human Bones: Are you aware that humans have more bones during the childhood stage as compared to the adult stage? Yes, it is true. A child has 300 bones; as he/she grows into an adult, the bone number reduces to 206. This is due to the fusion of some bones that takes place as a part of the development process. For this project, you can compare the human anatomy of the two stages and study the result.
Effects of Different Soaps on Plants: For this project, take three popular soap types and prepare a soap solution with water for each type. Make sure you take Check our website the same quantity of soap and water each time. Take four petri dishes and place a filter paper in each of them. Soak wheat grains overnight and grow a fixed number of wheat seedlings in each petri dish. Label the petri dishes with the soap name and use one for control condition; you can mark it as ‘water’, kill shot bravo cheats online as you will be using plain water in the control petri dish. Add 5-8 drops of water and/or soap solution twice daily, respective to the petri dish label. Note down the observations (root and shoot length) everyday after seed germination; within a week you will notice the difference in the growth of the seedlings for each soap type. Based on the data, prepare a graph and present the project.
Studying Soil Microorganisms: Collect four soil samples from different areas. Take four bottles and prepare soil solutions by mixing soil with water. Take the same amount of soil and water each time. Close the bottle lids and keep them in areas where adequate light is available. After about 10 days, you will notice the growth of algae (green coloration) in the bottles. You can study them with the help of compound microscopes. The more the number of organisms, the more healthy is that particular soil sample. This way, you can compare the shadow fight 2 cheats tool soil samples.
Effects of Salt Concentrations on Plant Cell: For this plant cell experiment, take a simple alga like spirogyra or chlorella. You can consult your class teacher and ask for any one of these. Prepare a hypertonic (higher concentration) salt solution and keep the alga in this solution for about 15-20 minutes. Then, observe the treated alga under a microscope. You will find the cell constricted, due to the process of osmosis. In this case, due to high salt concentration, water from the cell moves to the surrounding areas, resulting in a plasmolyzed cell. Compare with another algal structure immersed in plain water.
In a science fair project, one can make use of posters (pictures, graphs, charts) relevant to the particular science project. This may help in various ways; while explaining the project and/or answering any query, you can refer to these posters for better understanding. In case of a time-consuming experiment, you can skip some steps that can be explained by using the posters, so as to make the project short and interesting to present. Anyways, a very lengthy project sounds boring to the presenter as well as to the viewers.