GRADE 4 SCIENCE OLYMPIAD

What might happen when flour is mixed with cold water?

• The flour will dissolve completely in water.

• The flour will dissolve partially in water.

• The flour will not dissolve in water at all.

Which material dissolved in liquid when mix together?

• salt and vinegar

• black pepper and soy sauce

• flour and cooking oil

Tags

NGSS.MS-PS1-2

Which materials do not dissolve in liquid when mixed together?

• salt and vinegar

• sugar and water

• flour and cooking oil

What solid materials cannot be completely dissolved in the liquid materials?

• coffee and water

• salt and vinegar

• sugar and water

Which of the following is a mixture of a solid and a liquid?

• sugar and salt

• salt and water

• sand and pebble

What is the study of the interaction of living things with one another and with its environment?

• community

• ecology

• ecosystem

Tags

NGSS.MS-LS2-2

Which of the following is not needed by plants?

• soil

• water

• plastic

Tags

NGSS.MS-LS2-3

How many cotyledons does a monocot seed have?

• two

• one

• three

What is the young plant found inside the seed?

• cotyledon

• seed coat

• embryo

What is the third stage in complete metamorphosis called?

• pupa

• egg

• adult