Nick hypothesizes that wax has a higher melting point than chocolate. how can nick test his hypothesis?
a. measure the volume and weight of samples of wax and chocolate and calculate their densities.
b. heat equal masses of wax and chocolate and measure their temperatures when they start to melt.
c. heat samples of wax and chocolate and use a stopwatch to time how long it takes until they start to melt.
d. use mohs hardness scale to test how easily wax and chocolate can be scratched.

B. Heat equal masses of wax and chocolate and measure their temperatures when they start to melt.

To test his hypothesis, Nick should heat equal masses of wax and chocolate and measure their temperatures when they start to melt.

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.