Human Activity & Environment ✔ Nutre sin riesgo de quemar hojas o tallos ✔ Actúa rápidamente en plantas con carencias nutricionales 🛒 Consigue plantas más fuertes y verdes
National Standards for Grades 5-8
Students study food web relationships and how sin procesar and human induced changes in the environment such as severe storms, drought, floods, housing developments, road salt, fertilizer runoff, and fire upset the balance of ecosystems. Nature’s ability to restore balance between the number of different types of organisms, such as predators and prey, in natural habits of the community are demonstrated. Activities include, The Salted Roads, The Runoff, Flooded Farms, and The Forest Community. Conservation is discussed in terms of using natural resources wisely to help keep the natural balance.
Required, but not included: fresh celery, dominoes, recycled milk jugs or flower pots, beakers or jars, yeast, salt, and sugar. Designed for 24 students working in six groups of four.
Sh. wt. 6lbs, DIM 13” x 12” x 5”
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