Tagged pH

Acid rain and agriculture

Acid rain and agriculture

Students are never too young to do inquiry-based science! How does the pH of water affect seed germination? 4th/5th grade teachers at Wickliffe Progressive Elementary School Sabrina Walters and Shelly Hughes led their students through an experiment…

Boosting the chemistry of soil: A data analysis unit

Boosting the chemistry of soil: A data analysis unit

Which soil or nutrient inputs provide a return on investment? What data can help you find out? This case study helps students see how soil or nutrient inputs affect soil chemistry, the importance of controlling variables, and how to analyze yield data to determine if an agriculture treatment…

Honey and biotechnology

Honey and biotechnology

What can we learn by investigating honey? Using biotech skills, students will determine potential locations where pollen was collected and test the qualities and characteristics of a honey sample, including the sugar content and pH.

Sensory testing of foods

Sensory testing of foods

What senses are involved in our experience of food? This unit illustrates scientific ways of describing our experiences with food via sensory testing.

The Miracle Formula

student research project

The Miracle Formula

Does the amount of each ingredient and pH of chemical fertilizer affect how tall a soybean, watermelon, or pumpkin plant grows? The purpose of this investigation is to find out how the pH and amount of each ingredient in a chemical fertilizer would affect the height of soybean, watermelon, and pumpkin plants. It is expected that fertilizers containing more nitrogen will…