After an exciting unit learning about rocks and minerals, students are shifting focus in science to "Testing Materials". I this unit, the students will be tasked with solving real-life physics problems through creating tastable questions, forming hypotheses, performing fair tests, and recording their conclusions.
What is a fair test?
It is important for an experiment to be a fair test. You conduct a fair test by making sure that you change one factor (or variable) at a time while keeping all other conditions the same.
For example, students were asked who is faster at measuring the distance across the classroom - boys or girls? But in this case, the teacher set up an "unfair" test where the boys were given a 30 cm ruler, and the girls were able to use a meter stick. Can you guess who was fastest?
This was not a fair test because we more than one factor was different. When both groups were given a ruler the teams tied within 5 seconds.
What will we be testing?
The students are hired as contractors to determine the safest materials and designs to use. Some of these test include:
-Determining if rectangular or arch structures are stronger and why
-Constructing a model of a foot bridge with different beams (rectangular, accordion, and box girder) to see which is strongest AND uses the least materials
-Testing the stability of various pillar lay-outs
-And more! Stay tuned!
ASK ME ABOUT
* Keep your eyes open for these sections on the blog. Teachers will post questions to help you start conversations with your child regarding class activities/topics
Looking for Curriculum documents?