Year 5 enjoyed making their very own water clocks as part of science week. They cut a plastic bottle 2/3 of the way down. Then they removed the bottle top and pierced a few holes through it before screwing it back on. Next, they flipped the top piece of the bottle upside down and placed it into the bottom half. After that, they poured water into the top of the bottle and started timing. Each time a minute passed they drew a line on the side of the bottom half of the bottle at the water line. They were able to observe the water flow to indicate minutes passed!