Heat, Motion and Time Sample Questions for Class 7
Question 1
What is the study of heredity?
A. ecology
B. genetics
C. chromosomes
D. cosmetology
Question 2
Which of these is expressed in scientific notation?
A. 41.257 x 10
B. .41257 x 10
C. 41257 x 10
D. 4.1257 x 10
Question 3
A diagram that shows the amount of energy that moves from one feeding level to another in a food web is a(n)
A. food chain.
B. energy pyramid.
C. ecosystem.
D. niche.
Question 4
Which of the following lists Earth's layers in the correct order?
A. mantle, inner core, outer core, crust
B. inner core, outer core, crust
C. inner core, outer core, crust, mantle
D. inner core, outer core, mantle, crust
Question 5
The presence of in the core may explain the magnetic field that exists around Earth.
A. iron
B. copper
C. silicon
D. magnesium