and Weed control experts. Hypothesis If home-made and commercial herbicides are sprayed on weeds then the commercial herbicides will be more effective, because the chemicals are made by experts who know what chemicals kill and prevent weeds. Experiment Fill 2 different boxes and fill then with soil make sure to use the same type and amount of soil. Measure around one cup of grass seed and sprinkle it on the soil. Water the seeds daily until the grass is at least 1.5 inches tall.
Part One: Introduction Part Two: Plant Selection Plant 1: Wheat 1a. Why did you select this plant? I selected wheat because it contains rich vitamins in: B6 , Thiamin, Riboflavin, Panthothenic Acid, Niacin, Folate, Vitamin E & K. Wheat helps our bodies to maintain healthy metabolism, prevent Breast Cancer, Gallstones, heart risks, childhood Asthma, and it reduces the risk in Blood Pressure, High Cholesterol and Diabetes. Wheat is one of the best starches anyone can eat. 2b.
6.05 HONORS Lab Report: Dichotomous Key Directions: Use the Dichotomous Key on my site as you carry out this lab. Read all of the instructions below carefully, and fill out the BLUE portions of this sheet. Objectives: After doing this lab activity, you should be able to: Identify bryophytes, pteridophytes, gymnosperms, and angiosperms. Describe the characteristics and classification of the four main plant divisions. Materials: Four plant samples Dichotomous key (a copy is found in the Module Help column at www.rechanek.com) This lab report Hypothesis: 25% Bryophyta 25% Pteridophyta 25% Gymnosperms 25% Angiosperms Procedure: Read all the instructions for this lab before you begin working!
For each variable identified, give a specific suggestion for how it can be controlled during the experiment. Controlled variables I. Plant types (needs to be the same for every test avoid different plants) II. Amount of water (make sure amount of water being used is the same use measuring cups) III. Soil type (use one type of soil buy same type and make sure you have enough) IV.
When the roots are good and thick and the stem has leaved out, your avocado is ready for potting. Use a terracotta pot with a top diameter of about 10 inches. Put broken crockery around the drainage hole in the bottom of the pot and fill with soil rich in humus, leaving enough space for the seed and roots. Place the seed gently on top of the soil, taking care not to injure the roots. Carefully add soil until the seed is half covered, but do not tamp it down.
The reason why i think the plant growth light allowed the plant to grow much faster and fuller is because of the different types of wavelength of light generated by the light. The wavelengths that the plant growth light are different from the regular light because it produces wavelengths that the plant can use more efficiently. Plants use most of the wavelengths of light but only a certain few types of wavelengths allow the plant to operate at its full potential while doing photosynthesis. As technology improves so does the way we can grow plant more efficiently not only for home aquariums but for the masses of people around the world by growing corn and other foods faster so we can meet the demands from
Scientific Method Assignment Scenario 2: Katherine wants to investigate if the time of day a plant is watered affects the growth of the plant. She hypothesizes that a plant watered in the morning will grow faster than a plant watered at other times of the day. 1.) Identify the specific independent and dependent variables that will be involved in an experiment to test this hypothesis. To test this hypothesis, she must include the times of the day as her independent variable and the plant as her dependent variable.
What is the benefit of the modification? Because the GM tomatoes can remain fresh longer they have time to ripen in the sun before picking, resulting in a better tasting tomato! 4. Three advantages of genetically modified foods Longer lasting foods can be more easily transported, Having extra vitamins in food help poor people from becoming malnourished or going blind, and the insecticides inside some genetically modified plants keep farmers from having to spray the whole place down with toxic wastes, and they also 5. A counter argument to one of the disadvantages of genetically modified food Some antibiotics can be transferred to humans and make it harder for us to fight infections, genetically modifying foods could potentially put farmers out of work, and some important insects could be at risk because of the insecticides in foods.
Contamination precautions - use weed wand lid to prevent spills and herbicide contact with non target plants and waterway - cleaning of clothing and equipment to stop poisoning of non target species and stop spread of CCC - removal of unwanted cut plant material 3. Worksite document developed including approved intended works. Advertised on site and possibly local paper. 4. Effective communication.
CHEMICAL AND PHYSICAL CHANGES Purpose: • To observe and develop guidelines to recognize and identify chemical and physical changes. • To make and record accurate observations before, during, and after a chemical or physical change. Procedure: • Perform each of the following experiments AND follow the directions carefully. • Wear your safety glasses and aprons for the entire experiment. • For each change, carefully observe and record the following observations in an observation table o on the original substance(s) before the change.