How could a person easily tell which envelope contained four sheets of paper and which contained five sheets without opening the envelopes what assumption did you make in arriving at your answers

What must happen to the electric current in power lines before it can safely enter your home

What year was the Presidential Physical Fitness test created? 1955 1972 1966 1994

Explain why a scientific theory cannot became a scientific law

When you observe the world and see something that you don't understand, you make a hypothesis that you try to prove. This either fails so you make a new hypothesis, or it is proven to be correct.

Which of the following will not conduct an electrical current? a. pure water b. tap water c. aquarium water d. ocean water

What is three example of technology

Lisa has three classes that each last 50 minutes qhat ia the total nuber of minutes of minutes of the three classe?

Which has a greater speed a heron hat travels 600m in 60 seconds or a duck that travels 60 m in 5 seconds? Explain

A machine shovel moves dirt at the rate of 1,100 pounds of dirt 1 foot in 1 second. How many horsepower is this?

Two descriptions about physical quantities are given below: Quantity A: It is a force. Quantity B: It changes when the object travels from Earth to Earth's moon. What quantities are these most likely describing? A.