Marva is given two equal balls of clay. She rolls out one of the balls of clay into a long snake. Marva recognizes the long snake of clay still contains the same amount of clay as the ball of clay because she has acquired the skill of
a. conservation of mass.
b. conservation of number.
c. conservation of liquid.
d. conservation of length.
Question 2
The recognition that even when the physical appearance of something changes, its underlying quantity remains the same.
a. egocentrism
b. accommodation
c. equilibration
d. conservation
This girl has a long leg cast, which was applied after surgery to correct her clubfoot.
Long-range forecasts
Drug A is more potent than Drugs B and C. Drugs A and C have equal efficacy because both drugs have ...
Long division for polynomials