TASK DEFINITION: Combine the given two facts to write a concluding fact. Note that there should be some parts of the first and second facts that are not mentioned in this conclusion fact. Your combined fact should be the result of a chain between the two facts. Chains form when two facts connect together to produce a concluding fact. An example of a chain is: "pesticides cause pollution" (fact1) + "pollution can harm animals" (fact2) → "pesticides can harm animals" (conclusion fact). Parts of the concluding fact overlap with the first and the second fact. To construct such a  concluding fact, a useful way is to borrow the subject from one fact and the ending conclusions from another fact.
PROBLEM: Fact 1: condensation is when change from a gas into a liquid by reducing heat energy. 
Fact 2: Heat is kinetic energy.

SOLUTION: condensation is when change from a gas into a liquid by reducing kinetic energy.

PROBLEM: Fact 1: a breathing mask is used for keeping harmful particles from entering the respiratory system. 
Fact 2: When mold grows in the house, it can emit particles that travel through the air.

SOLUTION: A breathing mask can keep mold from entering the respiratory system.

PROBLEM: Fact 1: Chromosomes are coiled structures made of DNA and proteins. 
Fact 2: Genes are part of the chromosomes and coded for on the DNA strands.

SOLUTION:
Genes are a part of coiled structures made of DNA and proteins.