Mady+Leach

Which fertilizer makes a plant grow faster and healthier? I will get three of the same plants and give them each the same amount of different fertilizers and the same amount of water. One plant will be the control so it will only get water. Every week I will record the growth of the plants. **Fertilizers:** Miracle Grow, Ironite. **Plant:** Marigold. **Look for this in difference:** Size, Shape, Color. **Materials/Budget:** (Prices from Amazon) flower pots: $11.95 water 1/2 liter fertilizer- Miracle Grow: $9.54, Ironite: $13.33 flower seeds: $2.29 ruler: .85 **Hypothesis:** If I give one plant a fertilizer and another plant a different kind of fertilizer (both the same amount) then one will grow faster than the other. **Background Info:**

"Fertilizers are used by homeowners to maintain and improve landscape beauty and quality." (Environmental Impacts of Lawn Fertilizer)

Do you have a dependent and independent variable? It's important to know what is affecting and what is being effected. -Bekah Johnson How much fertilizer are you using and what will the procedure be? You should have an idea of how you'll actually //do// your experiment. -Bekah Johnson

(What type of lighting will the plants be grown in, it could effect how they grow.) Tessa Overly

(Try u sing two or three plants for each different type of fertilizer, incase one of the plants dies. it will also help make your data more accurate) Tessa Overly

You should rearrange your ISP in this order: Title, name, problem, background info, hypothesis, IV, DV, materials, methods, and works cited. -Lily Maxwell Make your hypothesis really specific by stating which fertilizer you think will do the best. -Lily Maxwell

You probably should narrow it down to just one dependent variable instead of three, because all three may be difficult to get correct data, and it may also increase the possibility of human error. -Cecilia Boore

Also maybe get a couple more types of fertilizer, so that there can be more data. More data is always good. -Cecilia Boore

Will each plant be getting the same amount of light? (Austin McMurray) Your hypothesis is unclear, which fertilizer are you predicting will be the most effective? (Austin McMurray)

You should put 3-4 plants in each group and the control group. You need background info on how the fertilizers work and how well they work so your hypothesis can say which will grow more. -Hailey Trulock r