SCIENCE DAY QUIZ Y4

When a muscle lifts the arm, it shortens. Which means?

• Contracts

• Becomes longer

• Relaxes

• Becomes harder

Which organ is not joined to any bones?

• Heart

• Brain

• Lungs

• Kidney

Which of these bone is longer?

• Finger bone

• Thigh bone

• Sine

• Ribcage

Which group of animals have scales?

• Reptiles

• Mammals

• Birds

• Amphibians

Which is the largest flower in the world?

• Lotus

• Rose

• Sunflower

• Rafflesia