7th Science TCAP Practice

In the following concept map, some items are missing. Which of the following are items that could appear under Matter---Combines---Chemically? What three answers should be under Matter---Combines---Chemically?

• Fizzing occurs
• Color Changes
• Precipitate forms
• Heterogeneous mixture
• Dissolves

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

At the beginning of the investigation, Carl recorded a total mass of 200g. After placing seltzer tablets in water, Carl again measured the mass. If the combined mass of the two seltzer tablets before they were dropped in the water was 5 g, select the total mass at the end of Carl's investigation.

• 195 g
• 197 g
• 200g
• 205g

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Mandy left a bottle of fizzing hydrogen peroxide on teh counter. Over the bottle opening, she attached a balloon. At the beginning of her investigation, the total mass of the bottle, balloon and liquid was 305 g. The fizzing hydrogen peroxide is an example of a(n)

• chemical change taking place
• mechanical change taking place
• physical change taking place
• evolutionary change taking place

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What cell organelle produces energy in plant cells?

• vacuole
• lysosome
• ribosome
• mitochondria

Tags

NGSS.MS-LS1-2

Where are the most reactive metals located?

• light gray, section A
• dark gray, section B
• black, section C
• textured, section D

Which organism shown in the image is a producer?

• deer

• grass

• buzzard

• All the organisms are producers.

Tags

NGSS.MS-LS1-6

What is the name of the organism representing the most concentrated source of energy contained within its tissues?

• shark
• otter
• abalone
• plankton

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

NGSS.MS-LS2-3

In class, John made a mixture of sawdust, water and iron filings. What will complete the series of activities John will best use to separate the items in the mixture? _____________ --> _________________--> gather sawdust

• stir --> filter
• evaporate --> use a magnet
• filter --> add water
• pick up --> add vinegar

The graph shows a population estimate from 2000-2005. What most likely occurred between 2003 and 2004?

• There was an increase in food
• There was a decrease in predators
• There was a population decrease
• There was a deadly viral outbreak.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The graph shows the changes of a grass population from 2007-2011. What do you predict most likely occurred between 2009 and 2010?

• an increase in light availbility
• a decrease in earthworms
• an increase in grazing animals
• a decrease in insects

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4