Use the terms gas, liquid, condensation, solid, and evaporation.? i can do the expiremnt i dont have ice! /
use the terms mentioned above to describe what happens when you put an ice cube over a bottle that contains very very hot water.
you will need an empty bottle (with a medium or small opening) made of clear glass, some hot water, and an ice cube.
place some hot water in the bottom of the bottle and put the ice cube over the opening of the bottle so that it rests on top and drips into the bottle.

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation: