Name: Science 3 rd 9 Weeks Test Study Guide

Transcription

1 Scientific Investigation 6.1 Name: Science 3 rd 9 Weeks Test Study Guide 1. Number (1-5) in order the steps of the scientific method. a. design an experiment b. draw a conclusion c. ask a questions/state a problem d. form a hypothesis e. interpret data Vocabulary f. when you use one or more of your five senses to gather information about the world around you. g. observation you make using your senses. (example: The kitchen floor is dirty. The wall is painted red. The milk smells sour) h. observation you make of numbers, amounts or quantities. (example: There are 23 students in science class., There are 52 M & M s in a bag. The weight of a paper clip is 3.2 grams. i. factor you change in an experiment. j. factor that your measure and it changes as a reaction to what you changed in an experiment. 2. Identify the independent variable and dependent variable. a. Ray pours lighter fluid onto lit coals. The coals burst into a large flame. i. Independent variable: ii. Dependent variable: b. Sara tested to see if plant grew to blue light better than yellow light. i. Independent variable: ii. Dependent variable: 3. Identify the independent variable and dependent variable in each hypothesis a. If I study for my test each day, then I will make a good grade. b. If I chew gum for a long time, then it will lose it's flavor. c. If I take vitamins each day, then I will not get sick as much. Water & Environment 6.3, 6.5, 6.7

2 1. What is the chemical formula for water? a. Draw and label a water molecule 2. List the three states of water and provide an example of each. a. b. c. 3. A small stream that flows into a larger stream is a. 4. List 3 types of wetlands a. b. c. 5. List 4 functions of a wetland a. b. c. d. Weather and Climate 6.5, an instrument used to measure air pressure. 2. Air pressure can also be called. 3. High reading on a barometer brings weather. 4. Low reading on a barometer brings weather. 5. Layers of the atmosphere are classified according to changes in. 6. US weather and storms normally travel from to. Energy & Fossil Fuels 6.2, 6.9 Vocabulary 1. energy of motion. 2. energy stored and held in readiness. 3. energy an object has due to its motion or position of an object. 4. energy of moving electrical charges. 5. energy of light and other forms of radiation; also know as light or radiant energy.

3 6. energy of moving particles in a substance, also known as heat energy. 7. energy stored in chemical bonds 8. energy stored in the nucleus of an atom. 9. any natural resource that can be replaced naturally in time. 10. any resource that is in limited supply and can t be replaced naturally, at least not for thousands of years or more. When ball A is being dropped, what energy conversion is taking place? Types of heat transfer a. - transfer of heat by touch a. example: b. - heat transfer through fluids or gas a. example: c. - heat transfer by electromagnetic waves a. example: Label the following energy. a. stored in the center of an atom, sun 's energy b. heat from a fire c. the spinning earth d. electrical outlet, lightning. e. digesting food, stored in fossil fuels, stored in batteries. f. light from a light bulb, energy used by plants to make food. g. toy sitting in a toy box 1. The suns energy begins as energy. 2. Energy from the drives the process of photosynthesis. 3. Fossil fuels store and have energy.

4 4. Your body uses to convert into energy. 5. Most sources of energy on Earth come from. 6. The process of coal formation begins when the provides energy to growing plants. List the energy conversions of the following. a. Car b. Hair dryer c. Light d. Burning candle 7. List the types of renewable resources a. b. c. d. e. f. 8. List the types of non-renewable resources or fossil fuels a. b. c. d. 9. Petroleum is a fossil fuels used to produce. Label the type of renewable resource being used in each picture.

5 Matter 6.4 Vocabulary 1. smallest part of an element, that still has the same properties of that element, building block of all matter. 2. organizes and arranges the elements by atomic number; there are about 100 elements found on the table. 3. horizontal rows across the periodic table. 4. vertical columns on the periodic table. 5. tiny particles inside the nucleus of an atom with a positive charge. 6. tiny particles inside the nucleus of an atom with a negative charge. 7. tiny particles inside the nucleus of an atom with a neutral change. 1. The periodic table is arranged by. Label the parts of an atom: Label the parts of an element: Atomic # = # of # of protons = # of # of neutrons = atomic mass -

6 Find the following using the elements below. Element Symbol : Element Name: Atomic Number : Atomic mass/weight: Protons : Electrons: Neutrons: Element Symbol : Element Name: Atomic Number : Atomic mass/weight: Protons : Electrons: Neutrons: What is the chemical formula for the following: 1. Water: 2. Carbon dioxide: