Natural science grade 8 Exam Questions with Latest Update

Independent Variable - ANSWER-The thing in an experiment that changes Dependent Variable - ANSWER-The thing that is affected by the independent variable Controlled Variable - ANSWER-The things in an experiment that stay the same Producer - ANSWER-Make their own food Omnivore - ANSWER-Animals that eat plants and animals Herbivore - ANSWER-Animals that eat plants Carnivore - ANSWER-Animals that eat other animals secondary consumer predator and scavenger Consumer - ANSWER-Organisms unable to make their own food Herbivore/omnivore Insectivore - ANSWER-Organisms that feed on insects Decomposer - ANSWER-Break down dead plants and animal materials and return nutrients to the soil Cellular respiration - ANSWER-Cells break up sugars into a form that they can use Test for cellular respiration - ANSWER-You cant test for energy produced so you have to test for a by product- Carbon dioxide Equation for cellular respiration - ANSWER- Ecology - ANSWER-The study of living things and their relationships to one another and the environment Organism - ANSWER-An individual Population - ANSWER-A group of organisms of the same species Community - ANSWER-A group of different populations Ecosystem - ANSWER-All of the biotic and abiotic factors and their relationships