Mr. Figueroa is providing an example of how two objects do not need to be touching for there to be an attraction. The static electricity generated by rubbing the balloon on someone's hair is the opposite charge as the charge on the paper. When the paper and balloon come near each other (not touching), the different charges are attracted to each other, and the balloon will cause the paper to "jump" or move.

Force can make things move, change shape, or change their speed. Some forces are direct and happen when two things touch (like pushing a friend on a swing) or other happen over a distance (such as a magnet drawing a paperclip closer). Objects only move when there is a force acting on them.

This data table organizes information and measurements collected during an investigation of an object's motion. The cup moved every time a marble was rolled into it. An accurate observation that could be made is that the heavier the marble was, the further the cup traveled. A pattern can be seen as the marble's weight increases; the distance the cup travels increases as well.

There is more than one pattern that may emerge from data collected during experiments or investigations. In this investigation, Ashley could see a pattern with the car that rolled down the plastic surface. The car on the plastic ramp rolled down the fastest two out of three trials. Ashley could conclude that this car went down the ramp the fastest.

Magnets have a magnetic field that attracts other magnetic objects, so because of this, they attach when they are close enough. If two magnets are moved closer and closer together, they will eventually reach each other's magnetic field and be very attracted to each other. Once this happens, the magnets will move towards each other and become attached.

There is a cause and effect relationship between magnets that is being explored in this question. Gregory and Morgan are experiencing the effect of magnets having the same poles or charges faced towards each other. If the North end of both magnets or South ends of both magnets were pushed together, the magnets would repel. If opposite sides were being pushed towards each other, they would be attracted and connected.

Magnets attract objects made of certain materials. Objects that are strongly attracted to magnets will stick to them. The plastic fork, sock, and paper plate will not stick to the attraction. These objects are not strongly attracted to the magnet. The metal spoon will stick to the magnet. This object is strongly attracted to the magnet.

Brad and Brian can use their scientific knowledge of magnets to determine which objects can be removed from the mixture. The items that can be removed have the quality of being magnetic. Bran and Brian can remove the iron filings and paperclips from the mix because they are both metal and magnetic. The other objects are made of materials that would not be attracted to the magnet.

Using scientific knowledge about magnets and their capabilities can help solve problems that we face in the real-world. If Mindy needs to remove the iron filings, she can use a magnet to remove them from the sand, dirt, and rice. The sand, dirt, and iron filings would slip through the sifter because they are so tiny, tweezers would not be able to sort the small filings out of the mixture, and a microscope would help Mindy see the iron filings better but would not help her separate them.

Junkyard magnets were an ingenious invention that solved a daily problem for the workers. Instead of breaking their backs lifting heavy materials, they were able to steer the magnet, and it could do all the lifting for them. A driver can control the magnet and move cars, scrap metal, and old appliances in seconds. Not only does this save the workers from lifting heavy things, but it speeds up the job too!