1. MY Vocabulary WORDS BY DALAL AWIENAT 4D

2. WASTE TO THROW SOMETHING NOT NEEDED OR NOT WANTED.

3. IMPACT the striking of one thing against another; forceful contact; EXAMPEL The impact of the colliding cars broke the windshield.

4. CURRENT A flow of positive electric charge. The strength of current flow in any medium is related to voltage differences in that medium.

5. TEMPERATURE A measure of the warmth or coldness of an object or substance with reference to some standard value.

6. DENSITY The degree of opacity of a substance, medium, etc., that transmits light. DENS not dens

7. biodegradable Material that, left to itself, will be decomposed by natural processes.

8. DESPOSAL SOMETHING WE CAN USE ONLY ONCE.

9. CONSERVATION The act or an instance of conserving or keeping from change, loss, injury, etc.

10. SALINITY containing, or resembling common table salt; salty or salt like: a saline solution.

11. CLIMATE A region or area characterized by a given climate: to move to a warm climate.