Crack the Code
It’s time to do a Crack the Code! Grab a piece of paper, pencil and an eraser so you can figure these out.
On each line, first you’ll need to guess the pictures. Then add or subtract letters to form words on the blank spaces. Each blank space is for one letter. For a helpful hint, all the words are simple machines and the words will fit perfectly on the blank spaces. If they do, then you’ll know you have it right. Good-luck!

Answers:
Be careful not to look until you’ve had enough time to really think the puzzles through. Then when you’re ready, see the answers here.