This data table provides information to analyze different materials. In the case of Myles, "Material 2" is weak and soft, which does not make an excellent material for a shelf. He would want to pick a material that is hard and would support the weight of items displayed. This leaves "Materials 1 and 3" for consideration. "Material 1" is flexible, which could be a poor quality for a shelf. "Material 3" is strong, hard, and not flexible; it would be the best material for a shelf.

The photo that demonstrates a change that cannot be reversed is the pan of brownies. Writing with markers can be erased and reversed, ice cubes can be heated and cooled multiple times between states, and a puzzle can be taken apart and put back together. Once the ingredients are mixed into a batter and then heated, the brownies cannot be turned into mixture again.

In the situation presented, Angelo is correct. The changes to the popsicle can be reversed. Once it has been heated up and starts to melt, there is a change. In this case, their father puts it back into the freezer when he gets the call; this would cause the popsicle to refreeze. In some instances, these changes can not be reversed, but in this example, it is possible.

The photo that represents an object being broken down into smaller pieces to make something new is the pizza. The individual ingredients are added to make the entire pizza. Olives are cut up, tomatoes crushed, peppers cut, etc. to be added onto the crust and baked. This is an example of something new being created from the smaller pieces of objects being broken up.

The statement presented in the question is false. You can take an object, break it into small pieces, and then put it back together to create something new. If you were to build a castle with blocks, you could knock it down and build something else instead. This is a simple example of making something new out of the pieces of something else.

Observational data is information that can be collected with our five senses. It the account must be based on evidence, there should be data provided and no mention of personal thoughts, feelings, or opinions. "I saw Sawney go for a run every morning at 9:00 AM while I was out watering my plants in March." This statement using factual evidence and does not include personal opinion.

The photo that represents an object being broken down into smaller pieces to make something new is the pizza. The individual ingredients are added to make the entire pizza. Olives are cut up, tomatoes crushed, peppers cut, etc. to be added onto the crust and baked. This is an example of something new being created from the smaller pieces of objects being broken up.

Personal opinion statements will include thoughts and feelings from the author. "Artists love to make mosaic pieces of artwork." is a statement that provides for individual ideas and makes a sweeping statement that "artists love to make mosaics." This is not something that can be proved scientifically and is just one person's opinion.

The statement above is a true statement and example of how heating and cooling can be reversed. If you melt a candy bar, the chocolate goes from a solid to a liquid. This can be reversed, and the candy bar can be returned to a solid-state by freezing or cooling it. Some changes cannot be reversed, but this example can be reversed.

In the situation presented, Angelo is correct. The changes to the popsicle can be reversed. Once it has been heated up and starts to melt, there is a change. In this case, their father puts it back into the freezer when he gets the call; this would cause the popsicle to refreeze. In some instances, these changes can not be reversed, but in this example, it is possible.