Grade 4 revision science

What is the function of the skull?

• Protect the brain

• carries oxygen to the brain

• Stores nutrient for the brain

• allow brain to move

what does a female animal need to reproduce?

• a skeleton

• a male insect

• a male animal that is same species

• a male animal from different species

what is the name of the two big teeth that are shown?

• canine (răng năng)

• molar (răng hàm)

• incisor (răng cửa)

• wisdom (răng khôn)

James and John measure their heart race and body temperature while at rest. Then they do exercise for few minutes. After that, they measure their heart race and body temperature again. What is the conclusion for this?

• When doing exercise, the temperature decrease

• When doing exercise, the body get stronger

• When doing exercise, the temperature increase

• When doing exercise, the heart race increase

When Ben turns 11, he starts to grow facial hair. Which life stage is he going through?

• puberty (dậy thì)

• childhood

• adulthood

• old age

Which data below showed the lowest temperature?

• -3 degree Celsius

• 0 degree Celsius

• -1 degree Celsius

• 5 degree Celsius

Explain why these two toys have shadows?

• the light is far away from the toys

• the toys touch the floor

• the light can't go through them

• they reflect light

choose the correct order for an investigation

• write the conclusion -> measure the result -> choose the right equipment

• choose the right equipment -> measure the result -> write the conclusion

• choose the right equipment -> write the conclusion -> measure the result

• measure the result -> choose the right equipment -> write the conclusion

Which statement is best described the result of this data?

• The temperature increased for 5 hours

• The temperature stayed above 20 degree Celsius

• the temperature decreased for 5 hours

• The temperature stayed below 30 degree Celsius

Which equipment can be used to measure the amount of water?

• ruler

• thermometer

• measuring cylinder

• scales