Explain how a rise in temperature may increase the rate of an enzyme controlled reaction

An increase in temperature increases kinetic energy of particles, so collision frequency increases and more enzyme-substrate complexes are formed, therefore rate of reaction increases.

Explanation: i no it

in a word, a scientific question is testable. a testable question is one that asks about objects, organisms or events found in the world around it

they float because they are less dense than the water itself

something denser than water, like a rock, will sink to the bottom