Daily Reinforcers 21-30 5th Grade Science

Object State of Matter Boiling Point Volume TEK 5.5A 21. Based on the table, what physical property could be used to separate the following objects? Object State of Matter Boiling Point Volume Olive Oil Liquid 300 ˚C 100 ml Water 100 ˚C Alcohol 97.2 ˚C Sea Water 100.7 ˚C Mercury 356.9 ˚C Jet Fuel 163 ˚C Glycerin 290 ˚C

Boiling Point, no other differences are on the chart.

TEK 5.2B 22. A student is using three different laundry detergents, a shirt with grass stains, three tubs of cold water, and three stirring sticks. What question could the student be trying to answer?

Which detergent gets stains out best?

TEK 5.5B & 5.2A 23. A teacher presents the two beakers above to her class. She asks the students to use their scientific skills to identify which of the above liquids is water. What could the students do to decide which is the water without tasting (not a safe practice in science)? A B

Evaporate both, see which has no material left.

TEK 3.8B & 5.4A 24. What is the length of the star photo below?

6 centimeters

TEK 5.5A 25. Which of the following liquids would be considered the least dense? A. 1 B. 2 C. 3 D. 4

A. 1

TEK 5.5A 26. Which physical properties could be used to separate the above materials?

Size Texture Color or Magnetism

TEK 5.5A 27. Which pole arrangement of the four magnets will hold the cabinet door shut most tightly when it is closed? A. B. C. D.

C.

TEK 5.5B & 5.2A 28. Based on the graph below, what is happening to water at stage 2? 3 4 2 1

The water is melting. Energy is increasing The water is melting. Energy is increasing. The particles are moving faster.

TEK 5.5A 29. What object in the cup would be considered the most dense? A. Oil B. Pasta C. Corn Syrup D. Paperclip

D. Paperclip

Amount of Salt in water (g) Boiling point of salt water (˚C) TEK 5.2D 30. The chart shows the change in the boiling point of salt water as more salt is added to the solution. What can you conclude from the information in the chart? A. The boiling point of salt water does not change. B. Water evaporates more quickly with salt in it. C. Increasing the salt in the solution increases the boiling point. D. Salt water boils at the same temperature as water without salt. Amount of Salt in water (g) Amount of Water (ml) Boiling point of salt water (˚C) 50 100 10 102 21 105

C. Increasing the salt in the solution increases the boiling point.