Test
Classifying Matter, Properties and Changes
Preguntas del test (13)
1Which of these is a pure substance?
- AA bar of gold
- BSoil
- CBlood
2A drop of melted wax falls on a table. It cools and becomes solid. How has it changed?
- AIt not longer has a fixed volume
- BIts atoms have stopped moving
- CIt has a fixed shape
3Suppose that you examine an unknown liquid. You determine that it contains a single type of molecule. What is the liquid?
- AA pure substance
- BA heterogeneous mixture
- CA homogeneous mixture
4An example of evaporation is when:
- AIce in a freezer slowly forms ice crystals
- BGrass wet with dew slowly dries in the morning sunshine
- CJust-washed hands are rubbed on a towel
5Which of these is a physical change, not a chemical change?
- ARipening apples turning red
- BRusting tools become reddish brown
- CPainting a cloth red
6As your stomach digests food, this would be considered a:
- APhysical change
- BChemical change
- CMatter state change
7Which of the following choices contains only physical properties?
- Amass, color, ability to rust
- Bability to be shaped, volume, ability to burn
- Cability to break, ability to bend, texture
8As a solid heats up, its particles gain energy and vibrate faster. When they vibrate enough, the particles move away from one another. This describes
- Afreezing
- Bevaporation
- Cmelting
9Which of these has the highest melting point?
- Aa stainless steel teaspoon
- Bice
- Ccooking oil
10A red liquid and a yellow liquid are mixed together. The result is an orange liquid that bubbles. This is evidence of
- Aphysical change
- Bchemical change
- Cphysical property
11A red and yellow liquid are mixed together. The result is an orange liquid. This is evidence of a
- Aphysical change
- Bchemical change
- Cphysical property
12Which of these is a chemical change, not a physical change?
- AA sweater turns purple from a grape juice stain
- BBurning wood turns into ashes and smoke
- CBubbles escape from boiling water
13During the phase change lab, the H2O molecules were
- Amoving faster and spreading out
- Bslowing down and getting closer
- Cbecoming more dense
Información
- Descripción
- Middle school level review of matter states and changes.
- Autor
- waughj
- Idioma
- English
- Visitas
- 27
- Etiquetas
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