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Science
Science Test 1
| Question | Answer |
|---|---|
| What do the numbers 5-10-5 mean on a bag of fertilizer> | 5% nitrogen, 10% phosphorous, 5% potassium |
| What is the measure of the pull of gravity on an object? | weight |
| What is a theory that has never been proven false? | law |
| How many variables does a good scientific experiment have? | one |
| What pH values are assigned to acids? | 0-6 |
| What pH values are assigned to bases? | 7-14 |
| What pH value is assigned to a neutral? | 7 |
| What is a substance composed of only one type of atom? | element |
| Which primary food element would be found in the ashes of burnt fruit? | potassium |
| If soil is to drain well, which type of soil does it need to include? | sand |
| What is soil that contains sand, silt, clay, and humus? | loam |
| What do dead plants and animals to do form humus? | decompose |
| What are substances that are composed of two or more elements bonded together? | compound |
| What is the amount of matter in an object? | mass |
| What is a sensible explanation to a scientific problem? | hypothesis |
| What plant food element would a plant need if it had shorts stems, few leaves, and a pale green color? | nitrogen |
| What is a measure of how tightly packed matter is? | density |
| When a crop is beginning to ripen, which plant food element would be good to add? | phosphorous |
| What are nitrogen-fixing bacteria that from swelling on the roots of legumes? | nodules |
| What does lightning, nitrogen-fixing bacteria, and nitrifying bacteria all turn nitrogen into? | compounds |
| What is it called when soil cannot hold any more water? | saturated |
| What are the three primary plant food elements? | nitrogen, phosphorous, potassium |
| What is the upper surface of ground water? | water table |
| What are the facts and information that scientists record is called? | data |
| What is the scale used to describe whether a substance is an acid or a base? | pH scale |
| What is the study of soil? | pedology |
| What is the study of matter and movement of God's physical creation? | science |
| What is the layer of solid rock below the soil? | bedrock |
| What is any soil material derived from living organisms? | organic material |
| What is any soil material derived from nonliving material? | mineral material |
| What is the top 2-6 inches of soil? | topsoil |
| What is the breaking down of dead organisms? | decomposition |
| What is the process that breaks rocks down into soil particles? | weathering |
| What is the reusing of old materials? | recycling |
| What is the substance int he soil composed of the remains of dead plants and animals? | humus |
| What are the air pockets in the soil called? | pore spaces |
| What is the substance of the physical world? | matter |
| What is the most basic units of matter? | atom |
| What is an area of ground water collected in a layer of rock or soil? | aquifer |
| What is the upward movement of water through tiny spaces in response to surface tension? | capillary action |
| What is a self-pumping well? | artesian well |
| List the six steps of the scientific method in order. | 1. State the problem 2. Gather information 3. Formulate a hypothesis 4. Design an experiment 5. Record and Analyze Data 6. State your conclusions. |
Created by:
cocqui07
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