Across
- 3. a way to write a number that shows the value of each digit as the sum of the digit multiplied by its place value
- 5. addend = sum, the sum being the largest number in the equation (inverse of subtraction)
- 6. a combination of 2 or more substances that keep their own properties; examples are fruit salad, chex mix and sand with iron filling
- 8. one of 10 equal parts; the first place to the right of the decimal; part of the whole
- 10. a way to estimate using pairs of numbers that can be easily computed mentally; mostly used in division in 5th grade - use the first digit/digits in dividend and change it to a multiple of the divisor, example; 3.720 divided by 58 using compatible numbers becomes 3,600 ÷ by 60 = 60
- 13. the amount of matter compacted into a given volume of a substance - more dense than water - sinks - less dense than water - floats
- 14. the operation of taking one number or amount away from another; minuend - subtrahend = difference, the minuend being the largest number in the equation (inverse of addition)
- 18. a special mixture of two or more substances that are evenly distributed throughout - two parts to a solution are solute (solid) and solvent (liquid) - water is the universal solvent; examples - saltwater and kool-aid
- 19. the operation of using repeated addition of the same number; the combining of equal groups; factor x factor = product, the product being the largest number in the equation (inverse of division)
- 21. anything that takes up space and has mass
- 22. the operation of finding the total, or sum, by combining 2 or more numbers;
- 24. one of 1000 equal parts; the third place to the right of the decimal; part of the whole
Down
- 1. is a way of solving problems that uses repeated trials in a set of steps to make sure your answer is accurate and based on evidence; steps in a science experiment
- 2. greek root word meaning life: biology, biography, autobiography
- 4. one of 100 equal parts; the second place to the right of the decimal; part of the whole
- 6. the pulling force of a magnet - being attracted to a magnet
- 7. greek root word meaning earth; geography, geothermal, geometry
- 9. characteristics of a substance that can be measured or observed without changing the substance (how it looks, smells, feels, tastes, and/or sounds); example - hair is still hair after a haircut and paper is still paper after it is torn
- 11. a form of matter - solid (definite shape & volume), liquid ( no definite shape & definite volume), and gas (no definite shape & no definite volume)
- 12. to use reasoning to determine an approximate value; an answer that is close to the exact one
- 15. a material that stops or slows the flow of heat, electricity, or sound - glass, plastic, and rubber are examples of insulators
- 16. (solubility) able to be dissolved in or by a liquid; salt and sugar or soluble, iron filling and sand are insoluble (not soluble)
- 17. a material that easily transfers heat or electricity, metals are good conductors; copper being the best conductor
- 20. the amount of matter in a solid, liquid, or gas, it is what is on the inside, measured with a triple beam balance or balance in grams
- 23. the operation of making equal groups to find the number of groups in each group or to find the number of equal groups using repeated subtraction; dividend ÷ divisor = quotient, the dividend being the largest number in the equation (inverse of multiplication)