Magnets have a cause and effect relationship with other magnets and objects that have magnetic properties. The magnets in the example are attracted to one another because they have opposite poles or charges. When the North and South poles of the magnets are placed near each other, the different charges are attracted. If the same poles (North-North or South-South) are around each other, they will be repelled because like charges are NOT attracted to each other.

This question is looking at the cause and effect relationship between magnets and other objects. Nails and sewing needles are metal, which would be attracted to a strong magnet. Placing the magnet over the items will pull them towards it.

All of the problems listed can be solved with a magnet. When we want to display a picture or holiday card, we can use a magnet on the refrigerator. The freezer door is sealed shut and keeps our food cold when the magnets within are close to each other, and the attraction keeps it closed. If a mixture is presented with metallic objects within the magnet can be used to separate those items based on their magnetic properties. These are simple problems and have a simple solution, magnets!

All of these answer choices are problems that people may be faced with every day, and only one can be solved with a magnet, "Randi dropped paperclips in her water bottle and needs to remove them.". This problem would be solved by putting a magnet near or in the bottle, and the metallic paperclips would be attracted to the magnet, and Randi could pull them out.

A magnetic item in his backpack that could help him find his way back to the campsite would be the compass. The other things are helpful during hiking but do not use magnets and would not help him find his way back to camp. A compass uses the Earth's natural magnetic field to point towards the North Pole for people to use as a guide for direction.

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!

This statement is true. Mrs. Addly did solve a simple problem by using a magnet. Her door was made of metal, so using something like thumbtacks would not work for hanging the students' work. A magnet would be strong enough to keep the papers up and on display, for all to see.

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.

All of the answer choices are correct because they accurately state a fact about magnetic materials. Iron and steel are both magnetic materials and would be attracted to a strong magnet. Plastic, aluminum cans, and cotton are all materials that would not be attracted to a magnet.

The iron pipe will be strongly attracted to the magnet because it has magnetic properties. Iron is a magnetic metal, so it would be drawn and stick to the magnet. Copper, plastic, and wood are not magnetic and would not be attracted to the magnet.