Sheet #54

1. 01

   ReferenceMonarch butterfly10 cm

   To size upHen's egg5.7 cm

   Measured Height of a medium hen's egg

   The shell makes up about 10% of the egg's weight.

2. 02

   ReferenceSmall car4.05 m

   To size upEuropean rabbit42 cm

   Measured Body length of an adult European rabbit

   Its ears reach a quarter of its body length.

3. 03

   ReferenceLight bulb11 cm

   To size upComputer monitor60 cm

   Measured Width of a 27-inch computer monitor (16:9)

   In 16:9, a 27-inch screen is 59.8 cm wide and 33.6 cm tall.

4. 04

   ReferenceSaguaro cactus12 m

   To size upLion1.1 m

   Measured Shoulder height of an adult male lion

   A lion's roar can be heard up to 8 km away.

5. 05

   ReferenceChild1.16 m

   To size upFootball goal7.32 m

   Measured Width of a football goal, between the posts

   7.32 × 2.44 m: exactly 8 yards by 8 feet.

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