Foundation Aqa Science Gcse Already Passed

What is a test for a fat (lipid)? {Ans: Add ethanol then water and shake. It turns milky}How does the stomach defend against pathogens {Ans: It contains acid that kill pathogens}What mass and charge has a neutron got? {Ans: A mass of 1 and a charge of 0}How do you find the speed of waves in a ripple tank? {Ans: speed = wavelength x frequency}What happens to the wavelength on a string if you double the frequency? {Ans: The wavelength is halved}What is the control of conditions inside the body called? {Ans: Homeostasis}How do you find the density of an irregular shaped object? {Ans: Find the mass of the object using a balance. Lower the object into a Eureka can than is filled with water to the spout. Collect the displaced water in a measuring cylinder and read the volume. Density = mass/volume}What is a non-communicable disease? {Ans: A disease not caused by a pathogen. It is not transferred from one person to another}What is the function of platelets? {Ans: Helps blood to clot} {Ans: }What sort of pathogen causes Salmonella and Gonorrhoea? {Ans: Bacteria}What is meant by specific