Stella and John wanted to test for the effects of temperature on the growth of plants. They took 24 plants- 1 was a control at normal room temperature (20 degrees centigrade) and the other 23 were split into these groups: 4-at 21 degrees centigrade 4-at 30 degrees centigrade 5-at 40 degrees centigrade 6-at 50 degrees centigrade 3-16 degrees centigrade 1-at 12 degrees centigrade Measurements of leaf size and number were taken every two weeks. Describe what is wrong with this approach

Explanation:

One, its the portion of samples that are being conducted for each set. The groups are not equally distributed correctly, so the results will not be very accurate at all.

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times

measuring physical properties lab reportinstructions: in the physical properties lab, you will test the physical properties of different building materials in order to pick the appropriate materials for a new home in tiny world. record your observations and test measurements in the lab report below. youwill submit your completed report.name and title: lyric lawton, mr.herbert, 10/13/17, physical properties lab. objective(s): i need to parvus build his house out of the right material, so he will stay cool in the mountains.hypothesis: if we use wood to build the roof of the house, then the temperature inside the house will remain cooler.if we use clay brick to build the walls and floors of the house, then the temperature inside the house will remain cooler.if we use aluminium to bring electricity into the home, then it will allow electricity to flow into the home at a faster rate.if we use iron to construct the latches on the windows and doors, then the magnetism will keep the latches secure.