Summary of the strengths and weaknesses of experimental designs A Level exam tips Answering exam questions (PSYA1 AQA A specification) Questions about types of experiments tend to be 1 or 2 mark questions that require you to: Identify the type of experiment in an example; Give 1 strength and 1 weakness of that type of experiment
Amazonâs wand is basically Dash 2.0. Like the companyâs first bar-code scanner, which was limited to Amazon Fresh customers, the 6-inch stick has a rubberized loop at the top for hanging purposes, but this time around itâs also magnetic.
10 Great Ideas for Homemade Bubble Wands. 1  Straws. 2  Fly or bug swatters. 3  Cookie cutters. 4  Colanders (for this one, you need a big bowl to dip, and instead of blowing the bubbles, move your arms back and forth so the force of the wind does the work for you) 5  Plastic slotted spoons. 6  The top end of a salt shaker or spice container.