I have many simple machines in my house and never even thought about it. The first simple machine is a bottle opener.
The second simple machine that we use is a door knob. The door knob is used by millions of people everyday.
The third helps us see when it is dark. It is a light bulb.
The fourth simple machine in my house is a fork. It helps me get nice and "healthy".
The final simple machine that not only I enjoy but so does my dog are our blinds. I like to let sunlight into our home and Lucy loves to look outside.
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