Grade 4 Review

What does Biodegradable mean?

• material that breaks down or decompose

• materials that CANNOT be broken down

Which item is biodegradable?

• food waste

• paper

• metal

• grass

Which of the following is a simple machine?

• hammer

• nail

• inclined plane

Fixed, movable and block and tackle are the 3 categories of what simple machine?

• lever

• wheel and axel

• screw

• pulley

The sun, stars and fire are examples of ________ light sources

• natural

• manmade

6 x 7 =

• 42

• 36

• 49

• 35

932

-120

• 832

• 812

• 730

• 700

What is the pattern rule for the counters in the figure?

• +1

• +2

• +3

• +4

63 ÷ 7 =

• 10

• 7

• 8

• 9

What is the number represented by the base ten blocks?

• 2345

• 1325

• 1235

• 5231