10 Days to STAAR 2026: Day 3
Please answer all questions. Some questions may require you to select more than one answer. Read each question carefully and refer to any diagrams or tables provided.
Group 1
Full Name: *
Question 1a
Full Name:
Group 2
What two important factors needed for coal formation are NOT included in the captions?
Source 2.1
The diagram below shows a simplified progression of coal formation.
Question 2a
What two important factors needed for coal formation are NOT included in the captions?
Group 3
Which part of the diagram shows a process that would happen faster on a hot, sunny day?
Source 3.1
A diagram of the water cycle is shown in the image below. Four main processes are labeled with A, B, C, and D.
Question 3a
Which part of the diagram shows a process that would happen faster on a hot, sunny day?
Group 4
Which property were they most likely considering when they grouped these items together?
Source 4.1
- Sugar
- Notebook paper
- Copper wire
- Plastic beads
- Styrofoam pellets
Question 4a
Which property were they most likely considering when they grouped these items together?
Group 5
Which statement does NOT explain a behavior of light represented in the diagram?
Source 5.1
A student shined a flashlight onto a thick piece of glass that was held above a piece of black rubber. The arrows in the diagram represent light rays that interacted with the glass and rubber.
Question 5a
Which statement does NOT explain a behavior of light represented in the diagram?
Group 6
Describe what the students likely observed during Step 3 AND explain the change that occurred at that point in the investigation.
Source 6.1
| Step | Action | Observation |
|---|---|---|
| 1 | A student placed a beaker of ice cubes outside on a hot, sunny day. | After 30 minutes, the beaker was filled with water. |
| 2 | The student brought the beaker of water inside to an air-conditioned area. | After 30 minutes, water droplets formed on the outside of the beaker. |
| 3 | The student placed the beaker on a hot plate. They put a thermometer in the water and waited until it read 110°C. | ? |
Question 6a
Describe what the students likely observed during Step 3 AND explain the change that occurred at that point in the investigation.
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