Science Experiment Close Reading

On The Surface

1. List the four main sources of heat. Friction, Chemical, Electrical, and Sun

2. List the materials needed to produce heat chemically. Candle, methylated spirits, dilute hydrochloric acid, caustic soda

3. When using a hand lens what should you not do? Don’t look at the sun through hand lens

4. How can you tell if heat is being produced? By slowly bringing the back of your hand towards the likely source of heat

5. What is the other name for caustic soda? Sodium hydroxide

Discovering techniques

1. List three features that indicate that this text consists of instructions or a procedure.   It has headings for each source of heat, it shows warnings so you’ll be safe, it’s helpful.

Search and Think

1. List the sources of heat that can also produce fire. Sun

2. Which source of heat involves heat being produced through movement? Friction

3. Which source of heat is produced by connecting to a source of energy.  Electrical

4. Explain the purpose of the hand lens in producing heat. The light focuses some light on the paper.

5.Most sources of heat need a source of energy to produce heat. List the source of energy for friction. Movement

Hidden Depths

1. Which source of heat do you most often and for what purpose? Electrical and sun. We use the sun for vitamins and to sometimes dry clothes. We use the electrical energy to power our appliances at home

2. If the sources of heat you used most often were not available to you, which other sources would you use? Friction