Science Experiments

Question: Can you think of practice middle school science questions regarding these topics?

1. Identifying characteristics and uses of various types of scientific investigations (e.g. observation/controlled experiment).

2. Selecting/using appropriate tools/international system (SI) units for measuring objects or substances.

I just want to know what kind of practice problems middle schoolers could have on these topics so I can study better.

Answer: Place an ice cube in 250ml of water, in a 500ml capacity beaker.
Have the students note and measure the change in the “high-water mark ” as the ice cube melts .
Other experiments could be conducted within this experiment, such as: temperature change tests and the like. Mention to the students that the ice cube would be like all the floating ice masses on the oceans. Even if they were all to melt, the water level of the ocean (and in the beaker) won’t rise — as expected! Have the kids give a round of applause to ARCHI — medes.

Guessing linear distance is a practical drill for everyone. Have the students visually estimate lengths of various objects, then have them measure with a ruler. The guesser closest to the actual number wins a certificate to hang on her or his wall “S.I.Rep” or something fun.

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