X
÷
+
-
Stem
100

14 x 3

42

100

32 ÷ 8 

4

100

399 + 254

653

100

500 − 278

222

100

What planet has rings around it?

Saturn

200

11 x 6.5 =?

71.5

200

110÷11

10

200

731 + 168

899

200

692 − 184

508

200

What is the process of water turning into vapor called?

Evaporation

300

20 x 15

300

300

96 ÷ 8

12

300

5,934 + 1,267

7201

300

4,782 − 1,956

2826

300

STEM Riddle: I have cities but no houses, forests but no trees, and rivers but no water. What am I?

A Map

400

58 x 14

812

400

245 ÷ 5

49

400

7,086 + 1,957

9043

400

9,250 − 4,896

4354

400

What material is made from sand and use in windows?

Glass

500

95 x 24

2280

500

300 ÷ 10

30

500

12,485 + 8,927

21,412

500

91,008 − 47,856

43,152

500

Which layer of Earth do we live on?

The crust