Fertilizers & Grass Growth

Ready to roll up those sleeves and get your hands dirty? Dirty with soil science content, that is! Overcome those "But it's just dirt" objections with a trip outside to collect soil samples for some in-class analysis. Use the variety of...

Students list sources of phosphorus in soil. They explain how phosphorus is removed from the soil and used by plants. Students list the symptoms of insufficient or excess phosphorus. Students perform experiments to examine the effect of...

Bubble, bubble, boil and trouble! What causes common substances like baking soda and vinegar to react the way they do? Welcome your junior chemists to the wonders of acid-base chemistry using a comprehensive and fun resource. Engage them...

Students analyze what occurs when grass will not grow. They interview maintenance staff at their school and research possibilities for grass to grow. They develop a research plan and conduct soil sample tests. They plant grass seed and...

Teach your class the descriptive characteristics of soil. Provide information about particle size and a flow chart for assessing texture. Soil scientists then analyze samples and hypothesize which would be the best type for a rain...

Students plant wetland plants in aquatic soil and regular soil. They test the effect fertilizers have on each and record the chemicals found in run-off water collected from each soil sample.

In this environment-oriented experiment, you will mix it up with earthworms, soil, and various types of organic kitchen scraps. The basic idea is to set up small earthworm colonies to compost different types of food waste. You test the...

Young scholars investigate the effects of soil temperature, water availability, photo period and other variables of the growth of purple loosestrife. They observe the growing conditions of plants and alter them by adding water, isolating...

Students examine the nutrient makeup in fertilizers.  In this plant nutrient lesson students see the effects of common fertilizers on plants.

Seventh graders design four biomes models and plant three types of seeds in them to observe growth. In groups for each type of biome, they predict the seeds' growth in each of the settings. Students follow the conditions on a biome chart...