try to look up for interesting animals or latest events
You could write about staying healthy, animals you like, your hobbies, global warming, etc.
Several persuasive topics for a speech for a sixth grader include - Coke versus Pepsi Eating Fast Foods Taking care of your teeth Littering Recycling Mobile Phone Use Immigration
Wet and wavy is a good hairstyle for a seventh grader if that's how they want to wear their hair. A wet look can also make hair look greasy.
if it is dog poo
How the world can change because of you.
it's ok but try to work a little harder.
Applications in nanotechnology
Yes. It is a very good score for a seventh grade and is approximately equivalent to the 90th percentile for a sophomore.
basketball
slavery is a good topic
pronouns nouns
if you are lokking for a good speech about cars take the volt and BMW and Benz