You should be able to get the freezing water question. It is very important to know the difference between a chemical and a physical reaction. I'm going to ask that you try this one yourself.
Are you male or female? It won't help for this question. It would have if I'd known before hand. It will help me to answer you later on. Do you cook is the point? If you do, you should know something about what happens when you bake a cake. But you may not be able to guess, even if you do cook. How about dough rising (for bread or buns?) Is that chemical or physical? This time I'll tell you. It's chemical.
To make a cake you need to blend a whole bunch of things together, sugar flour, eggs (most of the time). What happens? Do the look the same when you've finished baking?
That's right. Something new results especially to the egg. Chemical.
Burning a log is another common example. What are you left with after you've burned a log? Can you get the log back. Is there anything you can do to get the log back? If it was physical, you could. So what's left? And what do you see when you burn a log? Do you live where it snows? If you do, you must have seen a log burn.
