Common Assessment #1 Test Review Do you want to ace your first major test? – Look over your notes on scientific method, properties of matter, elements, compounds and measuring metric. – Pay close attention to this review. – Study this power point!!!

For a hypothesis to be valid, it must be A. Testable B. Supported by evidence C. Made into a law D. Both (a) and (b)

How many milliliters are in 15 kL? A. 1,500 B mL C. 15,000,000 mL D. 15,000 mL

A ________ object contains less matter than a 10kg object? A. 100,000g B. 100,000,000g C. 1,000,000mg D. 100,000,000 mg

The length of a a cell phone would be best measured in A. Centiliters B. Centimeters C. Meters D. kilograms

After forming a hypothesis, you should A. Test your hypothesis B. Ask a question C. Analyze the results D. Draw a conclusion

Scientists usually state their hypothesis in a “_____.... _____ “ format. A. How, when B. Why, not C. Problem, purpose D. If, then

When you write your conclusion to your experiment you should A. explain why you did this experiment B. guess what happened C. supporting your hypothesis by collecting more data D. explain how your data disproves or proves your hypothesis

A controlled experiment involves A. A control group, an experimental group, and a standard B. A control group, an experimental group and a variable C. A controlled factor, a standard and a variable D. An experimental group only

Graduated cylinders are used to measure The area of a solid The length of an object The volume of liquids The mass of a solid

An appropriate SI unit for density would be g L/M 3 g/cm 3 m

A large rock is added to a graduated cylinder containing 30mL of water, raising the level to 90mL of water. What is the volume of the rock? 90mL 30mL 60cm 3 90cm 3

What tool is used to measure mass? Ruler Scale Graduated cylinder Triple beam balance

What tool is used to measure the volume of an irregularly-shaped solid? Ruler Scale Graduated cylinder Triple beam balance

The mass of the space shuttle on earth would be Less than it would be on Mars More than it would be on Mars The same as its weight on the moon Does not change regardless of location

Your weight could be expressed in which of the following SI units? Pounds Newtons Grams Kilograms

The amount of space taken up by an object is known as the object’s Mass Weight Inertia volume

To measure the volume of water correctly, read the scale on the graduated cylinder at the _____ part of the meniscus. Lowest Outer Highest None of the above

The volume of a solid may be expressed in L 2 L 3 M 3 M 2

Gravity affects an object’s Weight Mass Volume density

If you wanted to see which bicycle tire would last the longest you should do one trial on a smooth road Do several trials on a smooth road Do many trials on different types of surfaces

You learn that a friend conducted an experiment proving that 8 th grade students using pencils in science got higher science SOL scores than 8 th grade students using pens in science. You can’t believe it and decide to test this hypothesis. In order to confirm the results, you should repeat the experiment using - Fewer students Color markers and pencils The exact same procedures as the original experiment 7 th grade students

Density = mass volume Mass = 12g 0.5g/cm 3 1.0g/cm 3 1.5g/cm 3 2.0g/cm 3 3cm 2cm 4cm

Density = mass volume A box has a mass of 24g and a density of 12g/cm 3. What is the volume of the box? – A. 264 cm 3 – B. 2 cm 3 – C. 0.5 cm 3 – D. 6 cm 3 1cm 2cm

Students measured and recorded the density of 4 samples. Using the density column and the data shown below, which of the samples will probably float on the oil? Densities ofSome unknowns LiquidsDensity (g/mL) Sample A1.02 Sample B0.96 Sample C1.15 Sample D0.82 Oil density 0.85 g/mL Water density 1.00 g/mL Corn syrup density 1.02 g/mL Sample A Sample B Sample C Sample D