When a child understands that a ball of clay that is rolled into ...

[nramada]

When a child understands that a ball of clay that is rolled into a ball has the same amount of mass as a ball of clay that is rolled into a long sausage, the child has the understanding of ___________________ _.
 
  Fill in the blank(s) with correct word

Question 2

Premature infants are at risk for ___________________ _, a cluster of breathing problems.
 
  Fill in the blank(s) with correct word

[Bsand8]

Answer to Question 1

conservation (of mass)

Answer to Question 2

respiratory distress syndromeq

[nramada]

Great answer, keep it coming

[nanny]

Thanks for the timely response, appreciate it