Gr 4 Science Reviewer - Water & States of Matter

Grade 4 1st Quarter Science Review Topic: States of Water; The Changing State of Matter  – Boiling, Melting, Evaporation I.

Fill in the blanks with the words from the box.

Melting Boiling

100 C Ice ◦

Evaporation Humidity

Bubbles Rate of Evaporation

Steam Rain

1. ______________ is the temperature needed to turn liquid water into gas. 2. ______________ is what happens when solid water turns to liquid. 3. A liquid can turn to gas at temperatures below its boiling point. This is process is called  ______________  _________________. ___. 4. One example of liquid water water is ___________________. 5. How quickly of slowly evaporation takes place is known as the  ______________  _____________________ ______________ ______________ __________. ___. 6. __________________ is a gaseous state of water. 7. The amount of water vapor in the air is called _______________________________. 8. When you heat water until steam comes out, we say that the water water is ______________. 9. _________________ is an example of solid water. 10. When water boils, ____________________ form in the water.

II.

Write T before the number if the statement is true. Write F is it is false.

 ______ 1. 1. Water can change change its its state when when it gains gains or loses loses heat.  ______ 2. 2. Boiling is a process when solid solid changes changes into a liquid.  ______ 3. 3. Steam is invisible. invisible.  ______ 4. 4. The mist you you often see when when water boils is made made up of tiny tiny water water droplets that are formed when the steam condenses.  ______ 5. 5. Evaporation Evaporation is a process process that that changes changes water from its liquid liquid state to its gaseous gaseous state at its boiling temperature.

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III.

Answer the following questions.

1. What are the three main factors that affect the rate of evaporation? a. b. c. 2. What are the three states of matter? a. b. c. 3. What state of matter cannot be seen? _________________________________ 4. Give 2 examples of the gaseous state of water: _________________________ 5. Give 2 example of the solid state of water: _____________________________ 6. Give 2 examples of the liquid state of water:  ______________________________________________ 7. How is steam produced?  ______________________________________________ 8. What is your favorite state of water? Why?  ________________________________________________________________   ________________________________________________________________

IV.

Complete the following table. Write high or low. Condition

Low temperature of surroundings High temperature of surroundings High humidity Low humidity  Absence of wind Presence of wind Large surface area Small surface area

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Rate of Evaporation