science week quiz-grade 4

1. Which body system helps us move by working with our bones?

• Circulatory system

• Muscular system

• Digestive system

• Nervous system

2. 2.Why do plants need roots?
   

• To catch sunlight

• To hold flowers

• To take in water and nutrients from the soil

• To make seeds

3.Which of the following is a characteristic of mammals?

• They lay eggs

• They have feathers

• They breathe through gills

• They feed milk to their young

4. In a food chain, which of these is usually the producer?

• Lion

• Grass

• Eagle

• Fish

5.Which of these gases is most important for humans to breathe?

• Carbon dioxide

• Oxygen

• Nitrogen

• Helium

6.What happens to water when it is heated and turns into steam?

• It freezes

• It becomes a solid

• It condenses

• It changes into a gas

7.What will most likely happen if you cover the leaves of a plant with black paper?

• The plant will grow faster

• The plant will make more flowers

• The plant will not be able to make food

• The plant will get more sunlight

8.Which of the following is true about gases?

• They have a fixed shape

• They can be seen easily

• They take the shape of their container

• They are always cold

9.Which group do frogs belong to?

• Mammals

• Birds

• Amphibians

• Reptiles

10.Which instrument measures the speed of the wind?

• Thermometer

• Barometer

• Anemometer

• Rain gauge