Building a rainforest terrarium and determining where a soil horizon begins are two ecosystem project ideas. Building a rainforest terrarium takes two to three weeks to complete and is a group activity, and it is possible to determine where bits of plants become soil instantly in the soil horizon experiment.Know More
Building a rainforest terrarium requires a see-through container such as a glass fish bowl, sand, potting soil, a tropical plant such as a fern, construction paper and cling wrap. After rinsing out the container, add 1/2 inch of sand to the bottom of the container, followed by 1 1/2 inches of soil. The sand and soil should be spread out separately and evenly. The tropical plant is added next, along with another inch of dirt to secure it. Trim the plant if it sticks out of the top of the container. Fully soak the soil by pouring 2 to 3 cups of water into the container, and place construction paper animals into the container. Secure cling wrap over the opening of the container, place it in partial, direct sunlight, and track growth in the next two to three weeks.
To determine the soil horizon, first consider an environment, and make a hypothesis on how deep plant foliage goes before soil becomes more consistent. Next, push a shovel straight down into the soil without mixing the layers of soil, and then look into the hole. Use a ruler to measure where bits of organic material stop and soil becomes consistent. Repeat the experiment in different settings to learn about different environments.Learn more about Homework Help
Shaking up different kinds of sodas and experimenting on the formation of crystals on various surfaces are great ideas for an eighth grade science project. Another viable idea is to investigate the effects of stress on the body’s temperature.Full Answer >
Science fair project ideas can be obtained from MPM Ideas, Science Kids and Education.com. These sites offer project ideas for children ranging from third grade all the way up to 10th grade.Full Answer >
To do an investigatory project, research of a scientific problem must be done first, followed by stating a scientific objective of the project. Experimentation related to the objective is carried out next, in accordance with a scientific methodology. The investigatory project is concluded with presentation of the findings.Full Answer >
Some good ideas for a ninth-grade science project are an experiment to determine the effectiveness of teeth whiteners, ways to keep bread fresh longer, and what makes a clothes dryer more efficient. They do not require a large amount of time, and all references used to research project topics should be cited.Full Answer >