Dr. O is playing in her garden again She needs 1 kg of potting soil for her plants. She has 750 g. How much more does she need? Explain your answer.

She needs 250 g more of potting soil.

Explanation:

Write 1 kg in grams, so you can compare the quantities in the same units: 1 kg = 1000 g

Then, since she has 750 g, she needs 1000 g - 750 g = 250 g to complete her task.

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is