Clock Worm

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Set on and off times. You can do this by pressing the pins that surround the boiler timer dial; each pin typically represents a period of 15 minutes.

Garwood PR, Olive PJW (1982) The influence of photoperiod on oocyte growth and its role in the control of the reproductive cycle of the polychaete Harmothoe imbricata (L.). Int J Invertebr Reprod 5:161–165Ensure the thermostat on the boiler is turned up , and the heating is definitely set to ‘on’. I have previously been called to properties where customers complained of no heat. It turned out they had turned down the stat on the boiler to 21 degrees Celsius.

Within the science curriculum there are many opportunities to connect with measurement, for example in the Programme of Study: working scientifically, it states that during years 3 and 4, pupils should be taught to use practical scientific methods, processes and skills through the teaching of the programme of study content, e.g. If you have a combi boiler and it’s turned to the right setting, all you need to do is turn on the tap to get hot water. Chu JW, Levin LA (1989) Photoperiod and temperature regulation of growth and reproduction in Streblospio benedicti (Polychaeta: Spionidae). Invertebr Reprod Dev 15:131–142

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Pupils use standard units of measurement with increasing accuracy, using their knowledge of the number system. They use the appropriate language and record using standard abbreviations. They use multiplication to convert from larger to smaller units. Perimeter can be expressed algebraically as 2(a + b) where a and b are the dimensions of the same unit. Mat AM, Massabuau J-C, Ciret P, Tran D (2012) Evidence for a plastic dual circadian rhythm in the oyster Crassostrea gigas. Chronobiol Int 29:857–867 Moon-controlled rhythms in marine critters have been observed for centuries. There is calculated guesswork, for example, that in 1492 Christopher Columbus encountered a kind of glowing marine worm engaged in a lunar-timed mating dance, like the “ flame of a small candle alternately raised and lowered.” Diverse animals such as sea mussels, corals, polychaete worms and certain fishes are thought to synchronize their reproductive behavior by the moon. The crucial reason is that such animals — for example, over a hundred coral species at the Great Barrier Reef — release their eggs before fertilization takes place, and synchronization maximizes the probability of an encounter between eggs and sperm. Wilson WH (1991a) The foraging ecology of migratory shorebirds in marine soft sediment communities: the effects of episodic predation on prey populations. Am Zool 31:840–848

count up and down in tenths; recognise that tenths arise from dividing an object into 10 equal parts and in dividing one-digit numbers of quantities by 10Scott DM, Mazurkiewicz M, Leeman P (1976) The long-term monitoring of ventilation rhythms of the polychaetous annelid Nereis virens Sars. Comp Biochem Physiol A 53:65–68 You could repeat this for days in different numbers of weeks, months in different numbers of years and so on. Naylor E, Atkinson R (1976) Rhythmic behaviour of nephrops and some other marine crustaceans. In: Spencer Davies P (ed) Perspectives in experimental biology, vol 1, Zoology. Pergamon Press, Oxford, pp 135–143 Here at Superwarm, I receive a lot of calls from customers who suspect this might be the case – however, sometimes it turns out to be something else entirely.

When working on measurement and/or multiplication and division there are opportunities to make connections between them, for example: Comparing measurements, e.g. this pencil is 5cm in length. That pencil is 3 times longer. How long is the longer pencil? Barnwell FH (1966) Daily and tidal patterns of activity in individual fiddler crabs from the Woods Hole region. Biol Bull 130:1–17 With this in mind, I thought I’d write this blog post so you can determine the real problem , and get it fixed. The problem Wilson WH (1991b) The importance of epibenthic predation and ice disturbance in a Bay of Fundy mudflat. Ophelia Suppl 5:507–514This is a pretty obvious one, but make sure you have not turned down the heating instead of the hot water (or vice versa). Reading that again, If I understand it correctly, only the boiler timeswitch turns the boiler on and off. The Salus does nothing. If that is correct, the Salus receiver will actually be permanently 'on' [As the two devices are wired in series, the timer and the Salus would both need to be 'on' at the same time for the heating to operate] Franke HD (1986a) The role of light and other endogenous factors in the timing of the reproductive cycle of Typosyllis prolifera and some other polychaetes. Am Zool 26:433–445