We are working on conjunctions.

Rewrite this avoiding "also".
If a pregnant mother smokes the child can be small. Also if the father smokes his spern can be abnormal. Also non-smokers have little risk of getting lung cancer.

If a pregnant mother smokes, the child can be small. If the father smokes, his spern can be abnormal. Non-smokers have little risk of getting lung cancer.

We're allowed to change words around, we can add more words, or, we can leave some out. What I have done-is it good?

Your rewrite looks fine except for the spelling of the word "sperm." Be sure to correct that!

If you want to include transition words where the "also" used to be, take a look at the possibilities in the first row of boxes in the chart on this webpage:
http://grammar.ccc.commnet.edu/grammar/transitions.htm
Scroll down a bit.

thanks

Yes, what you have done is good. You have successfully rewritten the sentence without using the conjunction "also." In order to avoid the repetition of "also," you have used different conjunctions like "if" and "and." Additionally, you have made the necessary changes to maintain the clarity and coherence of the sentences. Well done!