Unit 1 science review

Jenny is using different solar ovens to make cookies. The cookies bake best at the boiling point of water. Which oven should she use?

• Oven 1

• Oven 3

• Oven 4

• Oven 6

Which substance is probably water?

• sample 1

• sample 2

• sample 3

• sample 4

Which substance is most likely milk?

• sample 1

• sample 2

• sample 3

• sample 4

Which object is less dense than water and most likely to absorb water?

• cork

• marble

• wood cube

• rubber stopper

Which substance is most likely to be soluble?

• water

• toothpicks

• table salt

• cooking oil

• marbles

Which substance may be less dense than water?

• marbles

• plastic cubes

• toothpicks

• sugar cubes

Which material is most likely wood?

• material 1

• material 2

• material 3

• material 4

Which 2 items list incorrect physical properties?

• sugar cubes and salt

• cooking oil and salt

• carrots and cooking oil

• butter and sugar cubes

How can I separate a mixture of sand and water?

• drink the water

• Use a tweezer

• Pour it through a filter paper

• Pour it through a screen/sieve

How can I separate a mixture of sugar and water?

• Pour it through a filter paper

• Evaporate the water with a hotplate

• Evaporate the sugar with a hotplate

• Pour it through a screen or sieve