Physical Science - 2nd Grade Science

This argument is based on evidence. There is no personal opinion or thoughts involved in the statement. The popsicle investigation provides data to make conclusions from, so it is evidence-based and supported.

The statement that is constructed using evidence includes no personal opinions or statements and has scientific evidence to support the claim. "Heating and cooling can be reversed because ponds freeze and unfreeze every year." This statement is based on evidence that can be recorded each year and studied.

This is an argument that could be settled with evidence. The girls are arguing if heating and cooling is a process that can be reversed with butter as an example. The girls could test the butter by melting it and seeing if they can turn it back to solids. They could collect information during the investigation to help decide who is correct.

Annie and Patrick could use any of the answer choices to determine who is correct. They could perform an investigation or experiment and collect information. They also can research heating and cooling changes to determine if someone else has discovered an answer to their question. All of these actions could help the siblings collect evidence about the topic.

If Sammie's father wants to prove that he can reverse the changes to the fireworks, then he would need to return them to their original state. He needs to reverse anything that has been done to them in the process of lighting them or during the explosion.

Tabitha's teacher has not given her an impossible task. This is something that can be done because larger objects can be broken down into smaller pieces and then be made into something new. Tabitha could take the cube apart and put the cubes back together in a different order, which would make something unique.

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 true. 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.

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.

The term disassemble means to take something apart. In this case, the child is taking apart a tower that has already been built to make something new. Objects can be disassembled, and their parts use for other projects.

All of these photos show smaller pieces put together to make something new or larger. Bricks stacked to build a wall, blocks put together to create a tiger, and rings stacked into a cone are all pieces put together to make a whole.

In this scenario, Tabitha is correct, and Mindy is wrong. Objects can be disassembled or broken apart to form new objects. In the case of the snap cubes, the pieces can be put back together to make a unique shape, or they can be formed into something new by changing their order.

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

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

Butter is an excellent example of a heating change that can be reversed. Becca can melt butter and then cool it to reverse the effects. Melva disagreed with her but is unfortunately wrong in this case. Some heating and cooling changes can be reversed.

Some objects or materials can be heated or cooled, and the changes caused can be reversed. An ice cube could have the changes applied to it reversed. If you heat an ice cube it will melt, you can refreeze it to turn it back to a solid. If you toast bread, bake a cake, or cook an egg, that change cannot 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.

The photo that represents a heating or cooling change that can be reversed is the candle with melting wax. Once the candle is no longer lit, the wax will reharden and no longer will be a liquid. Baking a cake, heating toast, and lighting fireworks are all examples of applying heat in a way that cannot be reversed.

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.