Grade 8 Science

Does anyone know the correct answer to this Science question?

If you do work on an object, how will its energy change?

Its energy will increase.

Its energy will decrease.

Its energy remains the same.

Deskribatu zer gertatzen den abiadurarekin pertsona desberdinak sokaren alde desberdinetatik tiraka dabiltzanean.

What type of front is associated with hail storms

What does lunar eclipse mean?

Calculate no. Of moles in 329g of H2so4

49. Which of the following statements regarding chemical equilibrium is true? Equilibrium is shown with a single arrow and/or an equal sign. A system at equilibrium maintains the concentrations of all reactants/products over time.

Suppose the average concentration of copper in water is measured to be 2.5 x 10" M. a. Express this concentration in mg/L. b. Express this concentration in ug/L. c.

If I add water to oil what will happen

Commercial fertilizers, which are made by humans, are used to enrich soil for healthier crops. However, erosion may carry the fertilizer chemicals to the oceans. The presence of these chemicals may cause certain kinds of algae to reproduce rapidly.

A cube of iron has a temperature of 35°C. It is placed on top of a hot surface with a temperature of 175°C. What will happen to the iron? A) Its temperature will decrease. B) Heat will flow from the hot surface into the iron.

Density differences cause the