Science Homework #22: Year 11Homework Topic:Question 1Give two sources from which salt ca be extracted.C3Question 2Open-label, blind and double blind are types of human trials- which is least open to bias?B2Question 3A simple name for an object emitting radiation is a __________??P2Question 4The absorption/ reflection of infra-red radiation by gases in the atmosphere when it is Read More …
Science Homework #21: Year 11Homework Topic:Question 1Which part of the atmosphere protects us from ultra violet light from the Sun?P2Question 2Which useful chemical can the acidic gas, hydrogen chloride be converted to by oxidation?C3Question 3An injection containing a safe form of a disease causing micro-organism is known as a _____________?B2Question 4The electrolysis of brine (salt water) Read More …
Science Homework #20: Year 11Homework Topic:Question 1What do automatic control systems use to detect changes in the environment?B2Question 2Radiation can do three things when it meets a material… What are they?P2Question 3Give one piece of evidence other than the jigsaw fit of continents to prove Wegener’s theory.P1Question 4Which part of the atmosphere protects us from ultra Read More …
Science Homework #19: Year 11Homework Topic:Question 1Which pollutant causes buildings to look dirty?C1Question 2What does LCA stand for?C3Question 3Give one source of microwaves other than ovens.P2Question 4The maintainance of a constant internal environment is also know as __________?B2Question 5Which useful chemical can the acidic gas, hydrogen chloride be converted to by oxidation?C3Question 6Give a way of Read More …
Science Homework #18: Year 11 Homework Topic:Question 1A climbing rope would be srong in (compression/ tension) and weak in (compression/ tension). Delete the wrong ones!C2Question 2Why is the rate of extinction increasing?B3Question 3Name two products from incomplete combustionC1Question 4Give two ways in which new drugs are tested in the labs.B2Question 5Give two ways in which plants can Read More …
Science Homework #17: Year 11 Homework Topic:Question 1Which object that orbits the Sun follows a highly eccentric orbit?P1Question 2Sort these sources into primary OR secondary energy sources… fossil fuels, electricity, wind, nuclear, biofuels, waves and radiation from the SunP3Question 3What is the scientific name for the process of particles dropping to the bottom of a lake/ sea?P1Question Read More …
Science Homework #16: Year 11 Homework Topic:Question 1Give two other clues found in sedimentary rock which hint at the conditins under which the rock was formed.C3Question 2What do the materials cotton, paper, and silk all have in common?C2Question 3Give one source of microwaves other than ovens.P2Question 4A person with one recessive faulty allele can pass that allele Read More …
Science Homework #15: Year 11 What is the name given to ‘packets’ of light?Name two greenhouse gases other than carbon dioxide.Sort the following organisms into a food chain… chicken, fox hound, fox and wheatJoin the words polymerisation and monomer in a sensible sentence showing the meaning of both words.Two numbers are given for a blood pressure Read More …
Science Homework #14: Year 11 What evidence for large forces in the crust may show up in the rocks?Which blood vessel could be described as one cell thick and just wide enough for red blood cells to pass through?Which sex will a person with XY sex chromosomes be?Give two types of evidence for proving evolution.The absorption/ Read More …
Science Homework #13: Year 11 Give two non-living indicators to measure environmental change.What do automatic control systems use to detect changes in the environment?Why are embryionic stem cells more useful to use than adult stem cells?If 2 alleles of a gene are identical they are known as ……..?…….. Alleles.White cells can destroy micro organisms in two Read More …