A student wants to do an experiment to determine how watering affects plant growth. She plants three plants of the same species and size in pots using the same soil and grows them at the same temperature. She waters the first plant once a day, the second plant twice a day, and the third plant three times a day. In this experiment, what is the dependent variable

Graded assignment lab report answer the questions below. which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.

Which of the following happened during the precambrian era? the first prokaryotic cells the first eukaryotic cells development of photosynthesis all of the above

This is collection of data made by comparing objects in standard units. in science, the units are metric.