Science Quiz (1) A series of questions used to test your knowledge in ecology, astronomy, chemistry, and electricity. (For grade 9) Aydindril published on January 25, 20135 responses 1 5.0★ / 5 Questions in vertical order What do you call the limiting number of organisms a certain environment can hold? Type answer (17 letters) How many satellites need to see you at once to accurately find your position? Type answer (1 letters) What element are health professionals actually worried about when they refer to salt? Type answer (6 letters) Retrograde motion is: A movement where small nuclei combine to make a larger one. Movement of planets, comets, asteroids, moons from east to west across the sky. A sudden, rapid, and an intense vibration of brightness. What marks the end of our solar system? A heliopause A heliospere An oort cloud What are the two types of matter? Select the two correct answers Pure substances Elements Mixtures Homogenous What do you call a small body of matter from outer space that enters the earth's atmosphere appearing as a streak of light? Meteorite Meteoroid Meteor Ripping paper is an example of: Chemical change Physical change Rage Compounds: Can separate into simpler substances by chemical means Can separate into simpler substances by physical means Can't separate into simpler substances by chemical means The body must have been here for days. Is this an observation, inference, or totally possible? Type answer (9 letters) Homogenous means: There is a non-uniform composition There is a uniform composition Someone is a homo-genius. What does a light bulb do? Light things up Changes electrical energy into heat and light energy Changes electrical energy to light, heat, and current electricity What does the Heart and Stroke Association recommend as a maximum target level for salt in a diet? 2100mg or less per day 2300mg or less per week A soupspoon full 2300mg or less per day Which circuit divides the current for each load? Parallel Series Hi. Malleable means: A solid that can be pulled into wires A solid that can be hammered or bent into different shapes A solid that can be pressed into different shapes and sizes Helium is: A pure substance, molecule, and element A compound, atom, and molecule An element and a molecule What is NOT an effect of space flight? Motion sickness Loss of hand-eye coordination Fluid shift caused by zero gravity Loss of taste Who refined the telescope? Type answer (7 letters) What is a light year? A unit of measurement equal to length of the earth to the center of the sun. A unit of measurement used to measure the distance that light travels in a year. A unit of measurement equal to 149.6 million kilometers, the mean distance from the center of the earth to the center of the sun. How do you calculate sun spots? 10g + X X*10g 10+g*X 10g - X What 2 things are true about why nitrogen is important? Select the two correct answers We use it to cleanse our water Nitrogen gas takes up about 78% of the atmosphere Fats are made from nitrogen and helps nourish your body for it to be able to repair Proteins are made from nitrogen and proteins help nourish your body for it to be able to repair A large area on the earth's surface that is defined by the types of animals and plants is called: A biosphere A lithosphere A biome Population What do you call an increase in the concentration levels of a pesticide within the body overtime Type answer (15 letters) What do you call something that is the central principle or part of the ecosystem, community, habitat, etc, on which all else depend. Type answer (16 letters) Name the element with the symbol Na Type answer (6 letters) Which circuit divides the voltage for each load? Parallel Series Hey. What are 2 abiotic factors that affect population Select the two correct answers Temperature Water Wind Animals Is an observation using sense a qualitative observation? or a quantitative observation? Type answer (11 letters) If an atom has an extra electron or proton, it is called an: Type answer (3 letters) What does the colour of a star tell us? Its age Its temperature Its brightness What is the nearest star to us? Type answer (14 letters) Who believed that atoms of different elements were different and that compounds were formed by the joining of 2 or more elements and that all matter is made out of atoms that can be combined? Thompson Bohr Rutherford Dalton What is the word equation for cellular respiration? water + carbon dioxide --> oxygen + glucose glucose + oxygen --> water + fructose oxygen + glucose ---> water + carbon dioxide + energy water + oxygen ---> carbon dioxide + energy Commensalism is: Interaction between two organisms, populations, or species, in which birth, growth and death depend on gaining a share of a limited environmental resource. Symbiosis that is beneficial to both organisms involved. An association between two organisms in which one benefits and the other derives neither benefit nor harm. Interaction between two different organisms living in close physical association, typically to the advantage of both. Which star is older? A white dwarf or a red giant? Type answer (11 letters) If the circuit is 0.20 A and the resistance is 1000 ohms, calculate the voltage 200v 200a 150v 220v The inner planets contain: Mercury, Saturn, Mars, and Venus Uranus, Mercury, Earth and Mars Earth, Mercury, Venus, and Mars Mercury, Venus, Earth, and Saturn Out of these periodic table groups, which one is NOT a group Select the one correct answers Alkali Metals Transition Metals Rare Earth Metals Metalroids Halogens What elements are present in the sun's spectrum? Select the two correct answers Hydrogen Sodium Magnesium Fluorine Who figured out that electrons really close to the nucleus have low energy and the further it is, the higher the energy? Rutherford Bohr Thompson What is an Autotroph? An organism that makes it's own food through photosynthesis An organism that feeds off other organisms All the different groups of all the different organisms
Aydindril