10. Early in the book (page 55), one of the science lessons the children hear explains that light itself is invisible and lacks color, though it seems to be visible because It illuminates the things that we do see The title of the book is obviously drawn from this passage. Why is this the title of the book? What are all of the different kinds of "light" in the book which cannot be seen?

How much heat is needed to change the temperature of 3 grams of gold $(c=0.129\frac {1}{g^{\circ }C})$ from $21^{\circ }C$ to $363^{\circ }C$ ? The answer is expressed to the nearest whole number. 121 joules 132 joules 140 joules 149 joules

Fire the catapult at the lowest cup position What is the distance achieved? About 635 About 357

If Jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, what is being done? compression work radiation energy creation

Which word or phrase best describes entropy? disorder order kinetic energy force

What are most semiconductors made from? aluminum copper iron silicon

At which temperature does all molecular motion stop? OR $0^{\circ }C$ OK $0^{\circ }F$

Which statement about the volume and pressure of a gas is the most accurate? Volume of a gas is directly proportional to pressure of that gas in any container. Volume of a gas is inversely proportional to pressure of that gas in any container. Volume of a gas is always greater than pressure of that gas in any container. Volume of a gas is equal to pressure of that gas in any container.

CER: Make a claim about which type of material (dark or light)increases in temperature more when exposed to light energy Use evidence and scientific reasoning from class to support your answer. Your answer

In a transverse wave the wavelength can be measured as the distance between two adjacent compressions. TRUE FALSE

The slope of a linear velocity vs time graph tells us the __ of the object. displacement velocity speed acceleration