Exciting activities that make science active and fun! Carolina has the best specimens available, along with dissecting supplies, instruments, and much more.
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Carolina provides owl pellet products that are heat sterilized and easy to use for students of all ages. Excellent for hands-on, inquiry-based learning. For over 80 years, Carolina has provided superior non-mammal specimens that engage students in hands-on dissecting experiments.
K—8 inquiry-based, hands-on science curriculum that paves the way to deep understanding of phenomena through 3-dimensional learning. Moving to NGSS? Teaching NGSS is more than checking off standards. Thank you for your continued use of the STC Program. Keep your classroom alive with activities, information, and help in biology, biotechnology, botany, genetics, and more. Make your classroom electrifying with activities and information spanning chemistry and physics content.
Everything from equilibrium to electricity and reactions to rocketry at your fingertips. Mine activities, information, and helpful hints for ESS. Trendy 3-D special effects on movie screens grab and keep your students' attention. Now use their fascination with mutli-dimensions to discuss visual perception, optics, and colors while studying the solar system.
This demonstration is dedicated to raising your students' awareness of the air pollution created by their everyday activities. Teach a class like forensic science where you have to apply physics, chemistry, and biology content?
We have interdisciplinary activities and tips to help. This brief guide will provide you with the information you need to make a number of solutions commonly used in educational laboratories. In this activity, students engage in a game of beanbag toss—but instead of merely keeping score, they explore statistical concepts such as mean, median, mode, and range.
This author provides an excellent student lab-report format, explains how it adapts to different science disciplines, and suggests simple labs to familiarize students with it. Keep your classroom or lab safe throughout the schoolyear with lots of helpful tips, hints, and safety techniques. You have questions-we have answers. Get general information, care guides, and product information here. Brush up on the latest instructional strategies and pedagogy with information from our teaching partners, instructional designers, and academic consultants.
Feeling the pinch from the current economy? Carolina understands. Egeria densa , also known as Elodea densa because of its previously incorrect classification in the Elodea genus, is the most popular aquatic plant used to teach photosynthesis in the classroom.
Originally from Brazil, E. Known for its bright green color and leafy stems, E. Despite its popularity with educators and hobbyists, the use of E. People have improperly disposed of their aquarium plants by introducing them into local freshwater sources. In temperate climates, the spread of E.
As a result, over 10 states currently have placed shipping and trade restrictions on this species of aquatic plant. Where state laws restrict the availability of E. Elodea canadensis , also known as the waterweed, is very similar to E. Native to most of North America, E. Although it is not as green and has fewer, smaller leaves than E. Like E. You can successfully perform all other common photosynthesis activities using this species of Elodea.
Based on the season and availability, the genus Chara offers another great alternative to E. Although chara looks much like an aquatic plant, it is actually green algae. It belongs to the order Charales, which contains the closest green algal ancestors of modern-day land plants.
Chara is often called stonewort because it grows well in lime-rich waters, which causes hard calcium carbonate deposits to form on the algae. Chara has leaf-like structures branches arranged in whorls around a main stem axis , much like the aquatic plants described above. However, on chara these leaf-like structures are thicker, making microscopic observation more difficult.
Oxygen production and CO 2 depletion experiments, on the other hand, are very successful when you use plants from the genus Chara in your photosynthesis labs.
If you live in a state that restricts the availability of E. Here is a short lab activity to demonstrate the oxygen production of aquatic plants during photosynthesis. This activity works well for any of the plants described above. As oxygen is produced through photosynthesis, it travels up the stem of the funnel into the test tube where it displaces the water. This is a simple demonstration that allows your students to observe photosynthesis firsthand.
Although your state may limit your accessibility to one of the more well-known aquatic plants, Carolina ensures you have success with any alternative we provide. Check out our video Investigating Photosynthesis , in which one of our scientists walks you through the qualitative procedure above.
Perform the following steps with some or all of the classroom lights turned off. Ideally, the room should not be brightly lit, nor should it be dark; adequate light should be present for students to easily see. If the data set consists of an even number of values, the median is determined by averaging the two middle values.
It is possible to have two or more modes in a set of data, if two or more values occur with equal frequency. Graph Analylsis: Provide a graph of data from an experiment similar to the one students just performed, and ask them to draw conclusions from it. For example, the data could represent the heights of corn plants, half of which were grown in the shade of a forest and half of which were grown in an open field.
The light that comes from the sun consists of light waves of many different wavelengths. In the visible spectrum of light, these range from red with the longest wavelength, to violet with the shortest wavelength.
Chlorophyll does not respond equally to all wavelengths, or colors of light. Have students use the same experimental setup to determine what color or colors of light result in the most photosynthetic activity. The only modification they need to make is to loosely cover the beaker with colored plastic wrap or cellophane during the five minutes of bubble counting.
Since blue wavelengths are the best for most plants, be sure that this is one of the colors available. If possible, have red and one other color available as well.
DGE However, these contents do not necessarily represent the policies of the NSF, and you should not assume endorsement by the federal government. Why Teach Engineering in K? Find more at TeachEngineering. Quick Look. Print this activity. Suggest an edit. Discuss this activity. Activities Associated with this Lesson Units serve as guides to a particular content or subject area.
Do Plants Eat? TE Newsletter. Subscribe to TE Newsletter. Summary Students learn a simple technique for quantifying the amount of photosynthesis that occurs in a given period of time, using a common water plant Elodea.
They use this technique to compare the amounts of photosynthesis that occur under conditions of low and high light levels. Before they begin the experiment, however, students must come up with a well-worded hypothesis to be tested. After running the experiment, students pool their data to get a large sample size, determine the measures of central tendency of the class data, and then graph and interpret the results.
Grade 5 Do you agree with this alignment? Plants acquire their material for growth chiefly from air and water. Matter is transported into, out of, and within systems. Grades 6 - 8 Do you agree with this alignment? Science knowledge is based upon logical connections between evidence and explanations. Plants, algae including phytoplankton , and many microorganisms use the energy from light to make sugars food from carbon dioxide from the atmosphere and water through the process of photosynthesis, which also releases oxygen.
These sugars can be used immediately or stored for growth or later use. The chemical reaction by which plants produce complex food molecules sugars requires an energy input i. In this reaction, carbon dioxide and water combine to form carbon-based organic molecules and release oxygen. Reason abstractly and quantitatively. Grow lights are very specifically constructed to aide in various stages of plant growth. Regular lights are made for everyday use, and although many are used for specific purposes, they all are based on human needs and consumption.
Like plants growing outdoors in the sunlight, indoor plants grow best under full-spectrum bulbs, which produce a balance of cool and warm light that replicates the natural solar spectrum.
The most popular types of light bulbs to use as grow lights are incandescent or fluorescent bulbs, but you can also use LED lights, halogen lights and traditional horticultural grow lights, like high-pressure sodium bulbs HPS and metal-halide bulbs MH. Today, the most widely used lights for professional use are HIDs and fluorescents. Most houseplants do well with hours of artificial fluorescent light each day.
Too little light will result in elongated, spindly growth and too much light will cause a plant to wilt, color to fade, soil to become excessively dry and foliage to burn.
Plants also require a rest period each day. Light is a vital requirement for plants: it is necessary for photosynthesis, for information i. Artificial light sources interrupt that natural cycle — and may disrupt both the plants and the ecology they support. Potential Problems. While leaving growing lights on for a single night is unlikely to have long-term effects on your plants, constantly leaving the lights on can stunt their growth, prevent flowering, cause wilting and burn damage, and may kill the plants.
The Dark Side of Photosynthesis During light reaction, the plant absorbs light and turns it into energy. This energy is in an unstable form, however, and cannot be stored for later use. Because dark reactions do not require the absence of light, plants will remain healthy when exposed to light 24 hours a day. Researchers can successfully grow plants using only artificial light in growth chambers. But sunlight is best for most plants. Light intensity influences the manufacture of plant food, stem length, leaf color and flowering.
Generally speaking, plants grown in low light tend to be spindly with light green leaves. A similar plant grown in very bright light tends to be shorter, better branches, and have larger, dark green leaves. But many grow lights are now made specifically to cover the full spectrum.
As a result, full spectrum grow lights are almost as good as sunlight! But sunlight is a lot more powerful than grow lights. A plant gets about the same amount of energy from 13 hours under a grow light as it does from six hours under the sun. Yes , plant can perform photosynthesis under artificial light.
Given that plants do not have pain receptors, nerves, or a brain, they do not feel pain as we members of the animal kingdom understand it. Uprooting a carrot or trimming a hedge is not a form of botanical torture, and you can bite into that apple without worry.
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