OSU Review Homework
OSU Science UNIT 1 REVIEW
OSU Unit 1 Review Homework
Name:
Date:
Helpful Science Clues
👀 Qualitative
Describes with 5 senses (color, texture, smell, sound).
🔢 Quantitative
Describes with numbers (counting, measuring, amounts).
⚖️ Fair Test
Change only ONE thing and keep everything else the same.
1 Which sentence is a qualitative observation using your senses?
A. The green leaf is shiny and smooth. B. The leaf is 8 centimeters long. C. There are 5 leaves on the branch. D. The leaf weighs 2 grams.
2 Which sentence is a quantitative observation using numbers?
A. The rock is bumpy and dark gray. B. The rock weighs 45 grams. C. The rock feels cool and heavy. D. The rock makes a loud clack sound.
3 [True or False] In a fair experiment, a scientist should change many things at the same time.
TRUE FALSE Circle or check your answer.
4 Fill in the blanks using the word bank below:
Word Bank: hypothesis • question • test
1. First, scientists ask a about what they want to learn.
2. Next, they make an educated guess called a .
5 Sam tests which toy car rolls fastest down a ramp. What is a controlled variable (something he must keep the same)?
A. The height and slope of the ramp. B. The color of each car. C. The size of the wheels on each car. D. How hard he pushes each car.
OSU Unit 1 Review • Scientific Thinking & Observations Page 1 of 2 → Turn over for Page 2
OSU UNIT 1 REVIEW • PART 2
Science Tools, Units & Engineering
Student Name:
Tools & Engineering Helper Box
📏 Ruler
Measures length in centimeters (cm).
⚖️ Balance / Scale
Measures mass/weight in grams (g).
🧪 Beaker
Measures liquid volume in milliliters (mL).
🎯 Goals & Rules
Criteria: What it must do.
Constraint: Limit or rule.
6 Read the clue and write the name of the correct science tool:
Word Bank: thermometer • ruler • balance scale
Maya wants to find out how heavy an orange is compared to an apple.
Tool:
7 Which metric unit tells how hot or cold a cup of warm water is?
A. Degrees Celsius (°C) B. Centimeters (cm) C. Grams (g) D. Milliliters (mL)
8 Leo needs exactly 50 milliliters (mL) of water for a plant experiment. Which tool should he use?
A. A ruler B. A beaker or graduated cylinder C. A balance scale D. A thermometer
9 [True or False] An engineering criterion is a goal for what your design MUST be able to do to be successful (like holding 10 toy blocks).
TRUE FALSE Circle or check your answer.
10 Fill in the blank using the word bank:
Word Bank: constraint • ruler • hypothesis
A rule or limit (such as having only 10 minutes or 5 craft sticks) is called an engineering
OSU Unit 1 Review • Tools, Units & Engineering Great job completing your review homework! • Page 2 of 2
