Match these items and the phrases with which they are associated. 1. upward force of a liquid on an object volume 2. h2o buoyancy 3. basic unit of matter density 4. amount of matter in an object neils bohr 5. n = 1 inner shell 6. mixture atom 7. l × w × h water 8. drew first picture of atom mass 9. mass/volume concrete

Which of the following describes something an engineer would probably do first when developing new technology meant to reduce ocean pollution? o a. evaluate the benefits and challenges of using certain chemicals to purify water. o b. research new scientific findings in regard to ocean cleanup. o c. identify the need to reduce ocean pollution. o d. research what has been done in the past to clean up oceanic oil residue.

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

Classify each possible hypothesis about a medicinal aloe vera plant as falsifiable or non-falsifiable. aloe vera gel is the best natural skin moisturizer. aloe vera gel can heal wounds by boosting cell renewal. aloe vera juice tastes better than carrot juice. drinking aloe juice can reduce the risk of lung cancer.