Which are ways to improve the design of this experiment? check all that apply.
reduce the sample size so the experiment can be done faster.
increase the sample size from 6 cups to 12 cups of sand and water.
use more legible handwriting when recording data.
use more precise digital thermometers.
use more precise scales that measure to the hundredth of a gram.

Increase the sample size from 6 cups to 12 cups of sand and water.

Use more precise digital thermometers.

Use more precise scales that measure to the hundredth of a gram.

Explanation:

I just did the question, Hope this helps!

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives   amount of rainfall higher than savanna.   therefore, savanna exhibit dry and hot climatic conditions.